Mrs. Davis keeps a first-aid kit on her school bus. The first-aid kit is 10 in. wide, 7 in. Long, and 3 in. deep. What is the volume of the first-aid kit?

To calculate the volume of the first-aid kit, you need to multiply its width, length, and depth.

Volume = Width x Length x Depth
Volume = 10 in. x 7 in. x 3 in.
Volume = 210 cubic inches

Therefore, the volume of the first-aid kit is 210 cubic inches.