Asupermarket employee is making a mixture of cashews and almonds. cashews cost $7 per pound, and almonds cost $5 per pound. the employee wants to make less than 6 pounds of the mixture and wants the total cost of the nuts used in the mixture to be not more than $30. let x represent the number of pounds of cashews. let y represent the number of pounds of almonds. select all inequalities that represent constraints for this situation.
a. x + y ≤ 6
b. 7x + 5y < 6
c. x + y < 6
d. 7x + 5y > 30
e. 7x + 5y ≤ 30
f. x + y ≤ 30