I am thinking of a positive number. If I square it, double the result, take half of that result, and then add 12, I get 21. What is my number?

The students lockers at a college are to be numbered consecutively form 1 to 800 using plastic digits. Each digit cost 10c. What will be the total cost of all the digits?

A cupcake is 3 inches wide, 3 inches long, 3 inches high. How many cupcakes will fit in a box measuring 15 inches high, 7 cm inches long and 6 inches wide

Is the additive inverse of a number always, sometimes, or never negative? Justify your answer with an example.

Below are two expressions. Simplify each and then choose the statement that is true. Expression #1 Expression #2 (3d) 3 (d) (3d2) 2 The exponents in Expression #1 are greater than the exponents of Expression #2.

51,988 round to the nearest 10,000

How many hours is 9:18am - 2:00pm

What are the whole steps to get the answer for 4x - 6=x + 9?

Measure the length of the mouse as shown in millimeters and in centimeters. millimeters: centimeters :

Circle O has a circumference of 44 what is the length of the diameter

A number is multiplied by 3. If 3 is subtracted from the product you get 24.