Answer:
Janice rented the bike for 5 hours.
Step-by-step explanation:
The equation used to model this problem is 10 + 4x = 30. Subtract 10 from both sides. You are now left with 4x = 20. Divide both sides by 4. Now you have x = 5. This answer results in the conclusion that Janice spent 5 hours with the bike.
$312
468/12
12 * 8
30%
18 / 60 = .3 * 100 = 30%
the set of whole number since it is defined as positive integers + zero
