Alexis sells a car for a living and earns 28% of the dealerships profit as commission. in a certain month , she plans to earn $2200 in commissions how much total sales does she need to bring into the dealership?
alexis needs to bring in ___ in sales profit

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%)