Question

Justin Bieber had $815 in his savings account. He wants to keep at least $150 in the account

Answer 1

Let x = number of weeks.

815 - 35x ≥ 150.

Subtract 815 from each side

-35x ≥ -665

Divide each side by -35

x ≤ 19

He can withdraw $35 every week for at most 19 weeks.