Answer:
4hr
Step-by-step explanation:
$15 + 3=18+3= 21+3= 24+3= 27 at hour 4 (Canoe)
$6+ 5.5= 11.5 +5.5= 17+5.5=22.5+5.5=28 at hour 4 (Kayak)
After 4 hours, The Canoe would be the better deal because the Kayak's prices begins to go a dollar above the Canoe.