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?

How many stuffed animals can marissa buy with 20$ if each stuffed animal costs 6.95$

There are 8 sprinters in the Olympic 100-meter finals. Three of the sprinters are Americans. The gold medal goes to first place, silver to second, and bronze to third. In how many ways can the medals be awarded if at most one American gets a medal?

What is the best name of the solid that can be formed by this net? O rectangular pyramid tetrahedron O rectangular prism triangular prism Save and Exit

Antonio's weekly allowance is given by the equation A=0.5c+10, where c is the number of chores he does. If he received $16 in allowance one week, how many chores did he do?

Solve the equations. 6b - (3-4b) = -8

Use the marker to draw a triangle and find the slope of the line. input the ratio and choose the correct units

The number of subscribers for an online periodical doubles each month. The first month of publication, there were only 100 subscribers. How many subscribers will there be in one year?

The following table shows the weights, in hundreds of pounds, for six selected cars. Also shown is the corresponding fuel efficiency, in miles per gallon (mpg), for the car in city driving.

What's 40,000 2,000 300 70 6 in standard form

What is in between 1.50 and 1.10