Using new equipment, a worker finished 4 more parts in an hour than was planned and fulfilled his daily task not in 8 hours but in 6 hours. how many parts did the worker had to finish that day according to schedule? i really need and asap i beg plz

Acoffee shop orders at most $3,500 worth of coffee and tea. the shop needs to make a profit of at least $1,900 on the order. the possible combinations of coffee and tea for this order are given by this system of inequalities, where c = pounds of coffee and t = pounds of tea: 6c + 13t ≤ 3,500 3.50c + 4t ≥ 1,900 which graph's shaded region represents the possible combinations of coffee and tea for this order?