A big - screen tv that previously sold for $2,400 has been marked down to $2,040. What is the percent of decrease?

Ralph spends 15 1⁄3 hours per month playing tennis. How many hours does he play tennis in a year? (There are twelve months in a year.)

What is the simplest form for 9/66

Solve for y: 3y=2 (2+2y).

sing a cofactor expansion across the first row. Also compute the determinant by a cofactor expansion down the second column.

Mr. Mole left his burrow that lies below the ground and started digging his way at a constant rate deeper into the ground. After 5 minutes of descending at a rate of 1.8 Meters per minute, he was 13.5 meters below the ground.

Name the three numbers between 0.33 and 0.34

The cost of Jake's cell phone bill is determined by how many megabytes of data he uses each month, as shown in the graph below. Which equation represents the cost of Jake's cell phone bill, y, based on his data usage in megabytes x? A. y=0.5x 40 B.

Describe the relationship among the measures of the angles of a triangle. The sum of the interior angles is. The measure of an exterior angle equals the of measures of its two angles.

Explain why 3 (5x) is not equivalent to (3*5) (3*x).

If an angle is obtuse, what type of angle is it's supplement?