The sum of 15 and 7 times a number is 22

How many credit hours will a student have to take for the two tuition costs to be equal? round the answer to the nearest tenth of an hour.

What is the perimeter of a rectangle if the length is 5 and the width is x?

Yolanda wanted to buy a total of 6 pounds of mixed nuts and dried fruit for a party she paid 21.60 for mixed nuts and 11.90 for dried fruit did yolanda but enough mixed nuts and dried fruit for the party