A(n)=330 Plug in 10 for n
Surface area is the area of all the sides added up. If you were to unfold all the areas and make it flat (2-D), area is

.
Volume would be cubed because it's 3-D
Answer:
B) 7.5 in3
Step-by-step explanation:
Answer:
3/10
Step-by-step explanation:
2/5 + x = 7/10
x = 7/10 - 2/5
x = 7/10 - 4/10
x = 3/10