17. A rock-climbing gym called Rock-and-Roll charges $2.75 to rent shoes, and $3 per hour to climb. A competing gym, Climb the Walls, charges
$4.25 to rent shoes, and $2.50 per hour to climb.
a. Write an equation that gives the cost y of renting shoes and climbing
for x hours at Rock-and-Roll.
b. Write an equation that gives the cost y of renting shoes and climbing
for x hours at Climb the Walls.
c. Solve the system of the two equations you wrote in parts a and b using
any method. Why did you choose the solution method you did?
d. What does your solution to the system represent in the context of the
problem?