i dont really know. but he needs 280 dollars. if he works 6 weeks he will get 270 but thats 10 dollars short, but if he works 7 weeks he gets 315 dollars. so i would say 7 weeks.
Answer: 5 weeks Step-by-step explanation: 319.50-21.95=297.55 297.55/63.00=4.72 Since he can't wait for those many weeks, you would round it to 5 so he has enough money