1. what is the value of U in
6(U + 13) = 162 ?

a. 10
b. 16
c. 12
d. 14

2. what is the value of the expression 18 ÷ t for t = 6 ?

a. 2
b. 4
c. 3
d. 9

3. is the measure in square units of the regions covering all the faces of the space figure.

a. area
b. surface
c. perimeter
d. circumference​