By unit of length and distance and conversion ,we can say that
1 ft=12 in
15 ft =15 *12=180 in
15 ft 4 in =184 in
4 feet and 4 inches.
48 inches
157.5 inches.
68 inches.
5*12 + 4 = 64 inches ■
6 feet 4 inches = 76 inches.
100
184.
56 inches
4 feet 3 inches = 51 inches
568 " = 47 ' 4"
I think you want to know how many inches there are in 4 feet. The answer would be 12 x 4 = 48 inches