What is 6r2 + r, r = 5

Classify the trapezoid in as many ways as possible

10 to the power of 3 divided by 3

Evaluate 10 to the negative 2nd power

Antoine is making sushi rolls. He has 2 1/2 cups of rice and will use 1/4 cup of rice for each sushi roll. How many sushi roll can he make?

Given these equations x+y=9.0 0.50x+0.20y=4.05

Simplify (-15+78) - |22-83|

Factor f (x) = 2x^3+5x^2-97x+180

Jerry has 60 coins consisting of quarters and dimes. The coins combined value is $9.45. Find out how are quarters and how many are dimes.

A car travelled a distance of D = 199 km (kilometers) for T = 4.3 hours at a constant rate. Use the formula D=R. T to find the speed (R) of the car in km per hour. Round your answer to the nearest tenth. Do not include the units in your answer.

A car purchased for $21,000 was worth $8,500 after 5 years. If the cars value depreciated, or decreased, by the same amount each year, what was its yearly loss in value? At the end of the fourth year, the car was worth $?