The formula for volume (V) is l * w * h, where l is length, w is width, and h is height. So in a sense, we have already solved the first part of this problem!
V = 10 * 8 * 3
Now, all we have to do is complete this equation to find the volume.
10 * 8 = 80
80 * 3 = 240
The volume of Jose's box for baseball cards is 240 cubic inches.
Hope that helped! =)