The average of five numbers is 12.4. the average of four of these numbers is 11. what is the value of the fifth number?

X (x+9) (x-1) = 72. find x

Each face of a cube has an area of 400 cm2. what is the volume of the cube?

The number 59 is increased to 60. What is the percentage by which the number was increased, to the nearest tenth of a percent?

3 1/8 x 3 3/5 in simplest form

Give two examples that show how using parentheses can change the order in which operations are performed in an expression?

Solve for x. - 3x + 6 = 2x - 24 A) - 30 B) - 6 C) 6 D) 30

How to identify the vertex of a quadratic function

3/8 of the students in Ms. Mull's class ride the bus. If there are 24 students in the class, how many students ride the bus?

An object that weighs 1 pound on earth weighs 1.19 pounds on Neptune. Suppose her dog weighs 9 pounds on earth. How much would the same dog weigh on Neptune.

Which statement is true about the following equation 3.5z=2.25z-4.25+6.25 A. it has no solution. B. it has one solution. C. it has two solutions. D. it has infinitely many solutions.