Suppose you can work a total of no more than 15 hours per week at your two jobs Baby-sitting pays $10 per hourand your cashier job pays $12 per hour. You need to earn at least $120 per week to cover your expenses . Part : Write a system of inequalities that shows the various number of hours you can work at each job Graph the result Part B: Give two possible ways you could divide your hours between the two jobs.