You can work a maximum of 40 hours a week . You need to make 400$ in order to cover your expenses. Your office job pays 12$ and hour and your babysitting job pays 10$ an hour. Write a system of inequalities to model this situation.
have o as the hours you work in the office, and b as the hours for babysitting you can work at most 40 hours: o+b<=40 you need >=400$ and get paid 12$(o) and 10$(b) 12*o+10*b>=400
