Answer:
84 units²
Step-by-step explanation:
v = 8 * 5 1/4 * 2
v = 84 units²
volume equals l x w x h
8 x 5 1/4 x 2
42 x 2
84
Answer: 42
7 * 90/15 = 42
16
a+ 3(b + c)
a + 3b + 3c
but a + 3b = 7 and c = 3
7+3(3)
7 + 9
=16