The first, third, and fifth options, hope this helps
The answer is 59049 hope this helps
4/1 / 5/2 = 4/1 * 2/5 = 8/5
1 7/8 = 15/8
15/8 * 8/5 = 120/40 = 12/4 = 3 inches
shorter side should be 3 inches
6 subsets are possible, but the number of subsets depends on the problem
