Adelina wants to earn at least $120 a week to help her parents with bills. She determines that
she can charge $15 an hour to babysit and can earn $12 an hour bagging groceries. She can
only work 10 hours per week. Write and graph a system of linear inequalities that shows the
number of hours she can work so she can help her parents. Use x for the number of hours
babysitting and y for the number of hours bagging groceries.