How many combinations are possible for 13 objects taken 6 at a time?
1,716
205,920
1,235,520
4,826,809

At a sale this week, a desk is being sold for $213. this is a 29% discount from the original price. what is the original price?

Carl's candies has determined that a candy bar measuring 3 inches long has a z-score of +1 and a candy bar measuring 3.75 inches long has a z-score of +2. what is the standard deviation of the length of candy bars produced at carl's candies?

The measures of the legs of a right triangle are 15m and 20m . what is the length of the hypotenuse