Find the derivative of f(x) = 7x + 9 at x = 6

Which expression is not a polynomial?

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?

At your job you're paid $50 per week plus $3 per sale at least how many saled do you need to make in order to have over $250