jerry started doing sit ups every day. The first day he did 12 sit-ups. everyday after that he did 4 more sit-ups than he had done the previous day. today jerry did 28 sit-ups. Enter an equation that could be solved to find the number of days jerry has been doing sit-ups, not counting the first day.

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?