Answer:
y=45x+25
y = total cost and x = number of months.
Only two of them are the correct answers to this question.
The volume of a cube (V) is given in terms of its side length (s) as
... V = s³
You have
... 27n²⁷ = s³
You may recognize that 27 = 3³, so this can be written as

This result matches your second selection
... 3n⁹ units
The answer is C 252 rate of change
Answer:
√ x 12 = x 6 (or possibly − x 6 if you want to include the non-principal square root)