Answer:
15/8 - 6/8= 9/8
Step-by-step explanation:
figure #1
smaller part
4x7x2= 56m
larger part
4x3x7= 84m
84+56= 140m³
figure #2
2x4x3= 24m
4x4x12= 192m
192+24= 216in³
x = 7
12x - 16 = 68
Add 16 to each side
12x - 16+16 = 68+16
12x =84
Divide by 12
12x/12 = 84/12
Answer: i think its just 1
$120