Endpoint 1: (-9,8) and midpoint is (2,-1) need to find endpoint 2

Simplify the expression and find the missing terms. the simplest form of has in the numerator and in the denominator.

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%)

One positive integer is 2 less than another. the product of the two integers is 24. what are the integers