Answer:
C=12+3p
Explanation:
12 is Alexandra's initial value or the money she paid at the start so that value does not change because 12 is the constant in the equation.
3 is the number of hours she paid for or the coefficiant
in this equation. For every 3 hours she is going to pay 12 dollors
and it keeps going until she eventually leaves the parking spot and the variable c will show how much money she needs to spend.