Answer:
51 ft 4 inches
Step-by-step explanation:
9 ft 8 in
18 ft 3 in
15 ft 7 in
7 ft 10 in
--------------------
49 ft 28 inches
But there are 12 inches in 1 ft
24 inches in 2 ft
Subtract 24 inches and add 2 ft
49 ft 28 inches
+2 - 24
------------------------------
51 ft 4 inches
