13% of what is 78
"what" is the unknown, so use x for what.
"of" in math usually means a multiplication.
"is" means "="
13% * x = 78
0.13x = 78
x = 78/0.13
x = 600
Answer: the number is 600
Answer:
a) Total 16 possibilities
MMMM
FFFF
MMMF
MMFM
MFMM
FMMM
FFFM
FFMF
FMFF
MFFF
MMFF
MFMF
MFFM
FFMM
FMMF
FMFM
b) P(MMMM) = 1/16
The set up equation is 
4 raised to the power of 7 is 
The result is divided by p, so divide by 
This equation can be repositioned as y = 2x - 7.
A equation parallel to this equation must have the same slope.
When we fit -5 and -3 into our x and y to find b we get 7.
So the equation you're looking for is y = 2x + 7.
