The value of √-9 is not -3
a. 9^2 not congruent to -3
b. (-3)^2 not congruent to -9
c. 3^2 not congruent to -9
d. (-9)^2 not congruent to -3

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?