240, you just add a zero to 24, I don't know what you mean by zero the hero of 4 square, hope this helps!
Here are some simple equations that can be a life saver with this stuff :
vol of a sphere =

Circumference =

sorry this might not be very helpful. I haven't don't this since last year. You basically have to work backwards. so plug in 972 for V and then do (3/4)×3.14.
then take the answer u got for ^^ and divide it by 2? not sure.
18 min per pound
324 min. = X
______ _____
18 1 pound
324 x 1 = 324 324/18= 18 pounds
Cross multiply then divide as above.
First, reorder the numbers from least to greatest
1.4, 1.6, 1.7, 2.5, 2.5
The median is the middle number
1.7 is your answer
hope this helps