Alexandra paid \$7$7dollar sign, 7 to park her car for 333 hours at the parking garage. The garage charges an hourly parking rate. Write an equation that shows the relationship between the number of hours parked (p)(p)left parenthesis, p, right parenthesis and the cost in dollars (c.(c.left parenthesis, c, right parenthesis.

Assuming that the fee is purely based on duration, the equation would look like this:
c= a*p
where c= cost, a= rates per hour, p= hours of parking

Alexandra pays 7$ for 3 hours parking. So, a would be:
c= a*p
7$= a * 3 hr
a= 7$/3hr

Then the final equation would be: 
c= (7/3) *p