
Used:

Functions have the same derivatives if they differ a constant.
h(x) = f(x); g(x) = f(x) + const.
h'(x) = f'(x)
g'(x) = (f(x) + const.)' = f'(x) + (const.)' = f'(x) + 0 = f'(x)
h'(x) = g'(x)
Therefore yuor answer is A. f'(x)=g'(x)

Used:

es la probabilidad de tener tres hijos del mismo sexo
F(n)=f(n+1)=f(n+1)-5 because in the formula you are subtractinng
Answer:
I can't see the options of steps you have but here is my answer. First step is to subtract 60 from both sides so that leaves you with -3b= 60-27.
22 unit cubes and 2 smaller cubes of volume cubic inch each