Answer:
The answer to your question is No, he can not.
Step-by-step explanation:
Data
Height of the ceiling = 8 ft 7 in
Jeff's height = 7 ft 9 in
Height of the stool = 8 in
Process
1.- Convert all the heights to in
1 ft --------------- 12 in
8 ft --------------- x
x = (8 x 12) / 1
x = 96 in
Height of the ceiling = 96 + 7 = 103 in
1 ft ----------------- 12 in
7 ft ----------------- x
x = (7 x 12) / 1
x = 84 in
Jeff's height = 84 + 9 = 93 in
2.- Add up Jeff's height plus the height of the stool
93 + 8 = 101 in
3.- Compare the heights
103 (ceiling) > 101 (jeff + stool)
4.- Conclusion
Jeff will not reach the ceiling
