Need some assistance on this question.

If there are 12 moths and some have 31 days and others have 30 days how many have 28 days?

Complete the solution of the equation. find the value of y when x equals -5. -4x - 8y = -52

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?