Square root of 80/5 as a fraction

Find and simplify an expression for the area of five rows of x squares with side lengths of x centimeters .

Fa bus driver leaves her first stop by 7: 00 a.m., her route will take less than 37 minutes. if she leaves after 7: 00 a.m., she estimates that the same route will take no less than 42 minutes. which inequality represents the time it takes to drive the route, r?

What is the answer to the question 5x+2x