Tony noellert budgets his time at work today. part of the day he can write bills; the rest of the day he can use to write purchase orders. the total time available is at most 8 hours. less than 3 hours is to be spent writing bills. a. write a system of inequalities to describe the situation. (let x = hours available for writing bills and y = hours available for writing purchase orders.) b. graph the solutions of the system.