Loading drawing…
Loading drawing…
1st hour → $7
remaining hours → 3 1/2 - 1 = 2 1/2h
2 1/2h → 2 x 60 + 1/2 x 60 = 150 mins
every 1/2h = every 30 mins
number of additional 30 mins block → 150 ÷ 30 = 5
additional cost → 5 x 2.5 = $12.50
total cost → $7 + $12.50 = $19.50