on a beach trip, lucy rents a bike from "wheels by the Waves", where they rent bikes for $12 plus $3 per hour. if lucy spent $30, how many hours(h) did she rent a bike?

Respuesta :

2 hours! because, 12 plus 3 is 15 & 15 times 2 equals 30
$30 - $12 = $18
$18 divide by 3 = 6
answer - 6hours