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You flatter me Phill!! Thank you!! 

Thank you, CPhill !

The answer is A 

x-4=-6,

x=-2 

:)

x^1.....x^10 is equal to x^55

x^2.....x^20 is equal to x^110

x^55/x^110=

x^-55

2^-55

:)

Terri and Candace can mow the lawn in 18 min. 

⇒In 1 min Terri and Candace can mow = \({1 \over 18}\) part of the lawn

Candace alone can mow the lawn in 30 min

⇒ In 1 min Candace can mow = \({1\over 30}\) part of the lawn

So, in 1 min Terri alone can mow  \(=({1\over 18} - {1\over 30})\) part of the lawn

                                                      \(={12 \over 540}\)

                                                      \(={1 \over 45}\) 

∴ Terri alone can mow the lawn in 45 min. 

~Amy 

THX..  but......your  way  is just as  valid  as mine.....  

o u did it a different way thats cool i didnt think of that :)

i still need to solve those problems but this is pretty fun to do :)

the answer is 13 because multiples of 9 are 1,3 and 9, so the first and third terms are 1 and 9

so the second term is 5, +4 is nine, +4 is 13

1 , 5,  9 ,  13

Explanation  :    the  only two distinct  positive intergers  that  multiply to 9  are 1 and  9

The  second  integer  must  be  ( 1 + 9)  / 2  =  10 / 2  =   5

So.....the  common difference  is  4

13 is the answer :)

\(\sqrt{{6y+2}\over 2y+2}= {5\over 2}\)

Now, squaring both sides

\({{6y+2}\over {2y+2}}= {25 \over 4}\)

Cross-multiplying both sides, 

\(24y+8=50y+50\)

\(26y=42\)

⇒\(y= {21 \over 13}\)

Value of y is \({21 \over 13}\). 

~ Amy 

Hello, catmg!

I like your method; good job!!! There're only a couple of errors:

Note that BAD * 2 ≠ BCD.                  ( ∠ABD * 2 = ∠CBD )

AC^2 = 5^2 + 6^2 - 2*5*6*cos(100.6719294 degrees)

AC = 8.491826135

LOL.....no  problem  !!!!

thx u :)

wow u get to the questions so fast wow:)

2.Kathy tossed a coin 8 times and got 3 heads and 5 tails. How many different sequences of results could she have gotten?

8! / ( 3!  * 5!)  =   56  identifiable  sequences

lmao im bad srry

600  *. 76   =    456  did  not care  for  broccoli

can u screenshot it?

thxs bro :)

answer to number one is 54 :)

144

Very  nice, Amy  !!!!

I wouldn't  have seen  that  summing  " trick"....clever  .....!!!