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

Compare and contrast area and volume

Factor: 4x^2 + 12x + 9

Determine the value of sin 52 degrees and 47 mins. in this case mins are 1/60 of a degree

In the school library, there are 235 fiction books, 125 nonfiction books, and 250 magazines. The ratio of fiction books to magazines is 235:250. Write the ratio of fiction books to magazinesmagazines as a fraction, a decimal, and a percent.

Mr. Swenson made 7/10 quarts of blueberry jam, his family ate 1/10 of it. How much blueberry jam does he have left

Which transformations of the graph of f (x) = - 4x result in the graph of f (x) = 4x + 3? 1. reflection over the x-axis and shifted 3 units to the left 2. reflection over the y-axis and shifted 3 units to the right 3.

Jenny is kn her way home in her car. Her drive is 20 miles long. She has finished one-fourth of tje drive so far. How far has she driven?

Simplify 1) 3b + b + 6 = 2) n + 5n - 3c = 3) 12d - 2d + e =

If h = 21 units and r = 7 units, what is the volume of the cone shown above? Use 3.14 for.

Convert the fraction 2/5 to a decimal and a percent. Show all of your work and explain your answer.