Tyrone is the supply manager of a bakery. He needs to make sure there is plenty of flour on hand for their recipes each month. The bakery begins the month with 215.4 pounds of flour. Tyrone tracks the weekly use, along with the supply delivery received in the middle of the month.



Week Weekly Flour Use (lb)
1 −5812
2 −70.6
3 75310
4 −6778


How much flour does the bakery have on hand at the end of the month? Explain how you found your answer.