Answer:
C = 2.00r +20
Step-by-step explanation:
The coefficient is the multiplier of r, the cost of each ride. If it has gone down by $0.50, then its new value is ...
... 2.50 -0.50 = 2.00
The constant in the equation is the initial cost of the wristband. It is the value of C when r=0. If it has gone up by $5, its new value is ...
... 15 + 5 = 20
