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Hi Ginger :)

Happy Birthday Miss Rosala!

I thought this was your 16th birthday, too.

This is why I thought so:

The rules are the same - what is your question?

Here is your REAL cake ...

Now you have 2 cakes that you can share with everyone on the forum :))

Oh Whale....im 15 Melody....but okay if you say so..i dont mind growing faster........just get  me a filled bank account 

I messed that one up - Sorry Rosala.     

What did they say?

Do what?

log(x) + log(y) = log(z)

\(\begin{align} log(x) + log(y) &= log(z)\\ log(xy) &= log(z)\\ xy&=z\\ z&=xy \end{align}\)

Too bad the error correction posts were deleted. They were the funny posts.

that is a 1 followed by 500 zeros.  :))

Sorry for b) i meant to find the gradient of the line perpendicular to AB

(7x+yi)+(11i+5)=1+i

7x+yi+10i+4=0

What do you want me to do with this?

yi=-7x-10i-4

I suppose I could make y the subject - not that there is any great reason to do this.

\(y=\frac{-7x-10i-4}{i}\\ y=\frac{-7x-10i-4}{i}\times \frac{i}{i}\\ y=\frac{-7xi-10i*i-4i}{-1}\\ y=7xi-10+4i\\ y=-10+(7x+4)i\\\)

-15+<blank>=-25 WHAT IS THE BLANK

HINT:

Well you are going to have to add a negative number becasue -25 is more negative than -15

I wil do one and then you can do the others.

prime factors of 375 please?

Well 5 goes into it

375=5*75      now five goes into 75 too.

375=5*5*15       now 5 goes into 15 too

375=5*5*5*3

they are all prime numbers so 

The prime factors of 375 are 3 and 5

all the other factors are composite.  :)

7/8;14/16;21/24; 28/32; 35/40; 42/48

.75% of 172 = 75/100*172 = 0,75 * 172 = 129

2 / (81/9) = 2*9/81=2*1/9=2/9