Hey guys, I'm having a little trouble with this pre-calc lab. If you guys could point me in the right direction, or help me at all, I would greatly appreciate it.

An open box is formed by cutting squares from the corners of a 12 inch by 15 inch piece of cardboard and folding up the flaps.

a) Draw a figure that represents this situation.

b) What size corner squares should be cut to make a box with a volume of 125 in.^3?

c) What size corner squares should be cut to make a box with a volume ofmore than125 in.^3?

d) What size corner squares should be cut to make a box with a volume ofat most125 in.^3?

Thanks for your help in advance!