The rectangular prism has measures 6 units by 6 units by x units,
Thus, the volume is 6*6*x = 36x (units cubed)
The surface area of the prism is
2(x*6+x*6+6*6)=2(6x+6x+36)=2(12x+36)=24x +72 (units squared.
36x=24x +72
36x-24x=72
12x=72
x=72/12=6
Answer: x=6
1) Solve for radius
Radius = r
2) Solve for height
Height = h
3) in calculator enter : ( 2 x 3.14 x radius squared ) + ( 2 x 3.13 x radius x height )
C-1=13 — Combine like terms.
13+1=14 — Cancel the one out.
c=14 — Answer.
Answer: First option.
Step-by-step explanation:
Marta needs to subtract 
from both sides of the equation:
Now she needs to divide both sides of the equation by 
, then:
Rewriting:
Simplifying, she should get:
This matches with the first option.
