You're doing it exactly right! Keep on going! :)
Answer:
see the explanation
Step-by-step explanation:
we have
<em>Felicia</em>

Apply distributive property


Combine like terms

Let
a ----> the missing term with coefficient x in Gregory's expression
b ----> the missing constant term in Gregory's expression
so

equate Gregory's expression to Felicia's expression

so
----->
------> 
so
Gregory's expression is

therefore
The missing terms are 2 and -x
GINA IS CORRECT BECAUSE 4/5=0.80
0.80 IS GREATER THAN 0.75
The answer is 6 x 3 x 3 = 54.
I found this by finding the surface area with 9 x 6 and then seeing that 6 x 3 x 3 gives the same answer knew that one was correct, but I'm sure there's an easier way, good luck.