Aroad has an incline of 10 degrees. to the nearest foot, find the increase in altitude of a car after driving 4,000 feet along the road

What is the quadric regression equation that fits these data

Scrub a dub toothbrushes are $4.00 each. there is a 10% discount, but there is also a 6% sales tax after the discount is applied. what is the new price after tax? round to the nearest penny

Which represents the solution set of the inequality 5x-9 < 21? a. x < 12/5 b. x > 12/5 c. x > 6 d. x < 6