Mr johnson, the store owner, ordered 48 boxes of jawbreakers. each box contained 392 pieces of candy. how many lawbreakers did mr. johnson order?

Astudent must have an average on five test that is greater than it equal to 80% but less than 90% to receive a final grade of b. devon's greades on the first four test were 78% 62% 91% and 80% what range if grades on the fifth test would give him a b in the course? ( assuming the highest grade is 100%)