Simplify completely the quantity 4 times x to the third power plus 5 times x to the 2nd power plus 3 times x all over x.

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%)

Xy x xy if a and b are positive integers such that a*b=9 and b*a=72 what is the value of a/b

What is mean median mode and range?