Jillian paid $3 for the first 2 hours, so she paid $31 - $3 = $<<31-3=28>>28 for the additional 4 hours.
Each additional hour of parking costs $28 / 4 = $<<28/4=7>>7. Answer: \boxed{7}.
Jillian spent $31 to park for 6 hours. The parking garage charges a base rate of $3 for the first two 2 hours, and then an hourly rate for each additional hour. How much does each additional hour of parking cost?
1 answer