I'd personally go with A and C, The rest don't make too much sense. Don't count on my answer just yet though.
Volume is base • height so it would be 32cm
Answer:

Step-by-step explanation:
The first part indicates division with the phrase, divided by.
A number w divided by 5 -
Equals '6' would indicate that the value of 'w' and '5' would be '6'.
Equals 6 - 
Hope this helps.
9514 1404 393
Answer:
h = l/7
Step-by-step explanation:
Subtract 87, multiply by h, divide by 7.
94 = 87 + l/h . . . . given
7 = l/h . . . . . . . . . subtract 87
7h = l . . . . . . . . . multiply by h
h = l/7 . . . . . . . . . divide by 7