Answer:
indeed
Step-by-step explanation:
1.20x = 50
x = 50 / 1.20
x = 41.67 <== before tax
Prism volume = lbh
= 10*8*12
= 960cm^3
Note: I'm assuming the hole was cut right through it...
Hole volume = lbh
= 2*3*12
= 72cm^3
Final volume = 960 - 72 = 888cm^3
