Well, volume is: length x width x height
so, 5 x 14 x 8= 560 inches
So for this you will be doing proportions. Your equation will look like this: 
Firstly, cross multiply: 
Next, square root both sides of the equation, and your answer should be 
Answer:
5 questions
Step-by-step explanation:
5 wrong = 80%
Good job !