Aparallelogram is a square rectangle quadrilateral rhombus

Me asap! what is the slope of this line? enter your answer in the box.

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%)

What is the area of the shaded sector?