Use the GCF and the distributive property to find the expression that is equivalent to 36 + 60.
18 (2+4)
3(12 + 20)
6(6+10)
12 (3+5)

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%)