What is the radius of a circle that has circumference of 81pi square inches?

A. 9 inches

B. 18 inches

C. 40.5 inches

D. 81 inches

What's the probability of p (7)

A store receives a shipment of 5,000 mp3 players. in a previous shipment of 5,000 mp3 players, 300 were defective. a store clerk generates random numbers to simulate a random sample of this shipment.

You weigh six packages and find the weights to be 23, 15, 55, 19, 51, and 47 ounces. If you include a package that weighs 175 ounces, which will increase more, the mean or the median

What are the partial products for 28 times 15

The ratio of boys to girls in a school is 4:5. How many boys are in the school if there are 720 students.

The measure of a supplement of angle is 12 more than three times the measure of a complement. find the measure of the angle.

Triangle A is rotated 180° counterclockwise about the origin. Which figure is the transformed figure?

4 girls and 2 boys are working on an art project. They have four square pieces of felt. If each person gets an equal share of the felt, how much of piece of felt will each person get?

In a hypothesis test if the research question is, "do the data indicate that the mean is different from a specific value?" then is the hypothesis test a two-tail, left-tail, or right-tail test?

Will's bedroom is 12, feet long and 8 feet wide. His closet is half the length and half the width of his bedroom. What is the area of Will's closet floor?