Answer: x=7 (7 hours)
Step-by-step explanation:
13+8x=69
Subtract 13 from 13 and 69 to get
8x=56
Divide both sides by 7 to get
x=7
Sandy paid to ride the bike for 7 hours
Answer:
3.01
The net force on the brick is 0 N, and the brick remains at rest.