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$$\\(m^3 - n^3)-( m^2n - 2mn^2 )-( 2m^2n - m - n^3 + 2mn^2) \\\\
=m^3 - n^3 -m^2n + 2mn^2 -2m^2n + m + n^3 - 2mn^2 \\\\
=m^3 -m^2n -2m^2n+ 2mn^2 - 2mn^2 + m \\\\
=m^3 -3m^2n + m \\\\$$

A motor home rents for $220 per week plus $.0.25 per mile. Find the rental cost for a 2-week trip of 500 miles for a family of 5.

Cost = 220*2+  0.25*500

The family size is not relevant :)

Thanks Geno,     

Here is the graph

I did it!! 74658

Thanks Alan  :)

Should there be any brackets here?

Your question makes no sense :)

cos can only have values between ±1, so this equation has no solution.

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Let A be the weekly allowance

At the end of Monday he had spent A/4 and had 3A/4 left

On Tuesday he spent 3A/8 and since this was half of what he had at the start of Tuesday this must also have been what he had left for the rest of the week.  i.e. He had 3/8 of his weekly allowance for the rest of the week.

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Last one:

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| x | = 3       

x=3 or x=-3

second one is similar

third one : add 4 to both sides and then it is similar too

forth one similar.

5th one is different.     mmm     I'll think about it 

Here is the prime numbers under 100.

since yours are consecutive it is probably the 2 before 55 and the two after 55.

See if that works.  (I have not tried it )

Yes that does work :))

First of all ....... Be in your line MrTin , don't go out of the friendly zone , do you know one major difference between kids and adults ? It I that when kids get angry they just to show their temper use bad language mad when adults get angry their anger turns to ice just to show its my life who cares you say!

now what was the use of using a bad word and dirtying your tongue ? None of us would care what you've said, I wasn't going to rea stage whole thing but then I thought to follow my new rule think before you act! So why any you play like everyone else? 

If you really want anger! Then take some of mine , the one I have for those who do bad things in my country! Thatd relieve me from a major illness of worrying about my country! 

5/8 of the alllowance

Yeah but It does not work bcz I pasted the question

Was that supposed to be a hyperlink to the answer Maia?

Solution "202 , 202 , 202 , 202"

 | x²– 4x – 5 | = 7

x²– 4x – 5  = +7    OR      x²– 4x – 5  = -7

x2– 4x – 12 = 0     OR      x2– 4x +2 = 0

Now use the quadratic formula with each one to get the answers.  There are 4 answers :)

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Yes, I hardly do any posts from my phone.  It is a real pain :)

Yes, I realised my error as soon as I posted it!  I've now corrected it.

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Melody your answer is right but um Alan yours is kinda wrong but u still tried cmon cheer up please😄

It still wrong the answer is 46 3/4

this is the real step: 300*3/20+(7/8*2)=46 3/4

but melody thanks for trying I really appreciate it a lot I'm glad u helped😄😄😄

Oh dear, Alan and I have different answers.

Maybe we interpreted something differently :/

Fred and Joe had a total of 432 match boxes. Fred gave 2/5 of his match boxes to Joe and then Joe gave 1/4 of the total number of match boxes she had to Fred. Both of them had the same number of match boxes in the end. How many match boxes did Fred have at first?

Fred had F                 Joe had  432-F

Fred gave 2/5 (0.4)   of his match boxes to Joe

So now Fred has    0.6F     and   Joe has    432-F+0.4F = 432-0.6F

then Joe gave 1/4 of the total number of match boxes she had to Fred

So now Fred has     0.6F+0.25(432-0.6F) = 0.6F+108-0.15F = 0.45F+108

And Joe has            0.75(432-0.6F)=324-0.45F

Both of them had the same number of match boxes in the end. 

324-0.45F=0.45F+108

216 = 0.9F

F =240

So fred had 240 to start with.

Check :

If fred had  240  then  Joe had  432-240= 192

Fred gave 2/5 of 240 = 96 to Joe

so Fred now has  240-96=144     and Joe has   192+96=288

Joe have a 1/4 to Fred

Fred now has  144+(1/4 of 288) = 216     and Jow has   (3/4) * 288 = 216

GOOD They have botyh got the same :))