Answer:
R.) 20
Step-by-step explanation:
add all together and then divide by 5
Explanation:
ratio of volume
prism
:
cuboid
90
600
now cancel down
9
0
60
divide by 3
3
20
Step-by-step explanation: 6x+5x=3x+2x-54
11x=5x-54
+5x +5x
16x=54
16 16
x=3.375
