Find the exact value of sin22.5 (using the half angle formula)

What is the radius of the circle represented by the equation x^2 + y^2 - 6x + 4y = 12?

Write two ways to make 15

On the middle school baseball team, 8 players are sixth graders. Of the players, 40% are sixth graders. How many players are on the team? Explain your answer.

If I subtract 2 from my grandfather's age, the result is divisible by 7. If I subtract 3 from my grandfather's age, the result is divisible by 5. If I subtract 5 from my grandfather's age, the result is divisible by 11. How old is my grandfather?

A table is on sale with a 40% discount off the regular price. if the regular price of the table is $224.90, what is the sale price?

Find the sales tax of 48

The numbers 1 through 9 are written on slips of paper and placed in a box. Calculate the theoretical probability that a number randomly pulled out of the box will be even.

Subtract X from 3x-1

Find an equation for the linear function which has f (150) = 1500f (150) = 1500 and f (650) = 3900f (650) = 3900

Mrs. Warren is playing a crazy game of Monopoly with her son Ethan. In order to land on Boardwalk she will need double sixes. What is the probability as a percent that she will roll two sixes?