Refer to these expressions to answer the questions that follow: 6 X 5 = 30 12/3 = 4

a. Which numbers are factors?
b. Which number is the quotient?

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%)