Can someone help me please. TYSM

Find two numbers if their sum is 91 and the ratio is 6: 7?

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%)

Urgent? will give brainliest to the first correct answer what is the area of the figure?