What is the formula for the area a of a circle in terms of radius r

A positive integer n is said to be "prime-saturated" if the product of all the different positive prime factors of n is less than the square root of n. what is the greatest two-digit prime-saturated integer?

Put these in order of size 0.8, 30%, 3/5

What is the area of a regular hexagon with an apothem 8.7 yards and a side 10 yards long

Compare the functions shown below: f (x) = (x + 3) 2 - 2 g (x) linear graph with y intercept of negative 3 over 2 and x intercept of 3 h (x) x y -3 2 -2 7 -1 14 0 23 1 34 2 47 3 62 What is the correct order of the functions from least to greatest

1 out of 2 or = 8 out of 10

Ian is organizing his books and putting them on shelves. He put 3 books on the first shelf, 5 books on the second shelf, 9 books on the third shelf, 15 books on the fourth shelf, and 23 books on the fifth shelf.

In 3 hours a car traveled 180 kilometer. at the same average rate, how many kilometers can the car travel in 5 hours

The flow of water from a faucet can fill a 4 - gallon container in 28 seconds. Give the ratio of gallons to seconds as a rate in gallons per second.

Simplify the expression. Write your answer as a power. (2/3) ^2⋅ (2/3) ^6

What is greater - 8 or - 8 8/9?