3.48 repeating as a fraction is:
3.48=
87
-----
25
That is easy you do the addition and then what ever sign had the bigger number is the number the answer gets
Volume of first prism = 120 x 12 = 1,440 cubic feet
Volume of second prism = 84 x 6 x 16 = 8,064 cubic feet
The volume of the second prism is more than that of the first.