The width of Anne's bed is 40 inches and the distance between opposite corners is 85 inches. What is the length of Anne's bed?

If f(x) = 2x + 2 and g(x) = x? , what is (gºf)(2)?

Liz had 140 pens and inna had 100 pens. after inna gave liz some pens, liz had 3 times as many pens as inna. how many pens did inna give liz?

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%)