Twice the sum of a number and four is less than twelve

The function f (x) = - x2 - 4x + 5 is shown on the graph. On a coordinate plane, a parabola opens down. It goes through (negative 5, 0), has a vertex at (negative 2, 9), and goes through (1, 0).

What is the volume, in cubic m, of a cylinder with a height of 20m and a base radius of 8m, to the nearest tenths place?

Write an inequality or equation that can be solved. Fred saves $150 per week. he has $485. he wants to buy a computer for $2,568 how many more weeks does he have to save to buy it?

Evaluate 0.53n+5 when n=3

Witch number is not a perfect square 1 25 30 36

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 $?

A (n) = - 5 ∙ 3^ (x - 1)

Jessica drove her car 418 miles on one tank of gas. Her car a 15 gallon tank. How many miles can Jessica drive on one gallon of gas?

Inga can earn $575 per week in a plant store, or she can earn 4% of total sales. How much would Inga have to sell to earn more in commission than in salary?