A circle has a diameter that measures 21 feet. What is the circumference of the circle?

Convert 240/98 to a proper fraction

Leo and Maggie volunteer at the local bird sanctuary. Volunteers carry walkie talkies. Leo notices that his battery charge is only at 20%. When fully charged, the batteries last 12 hrs.

What is the 8th term of this geometric sequence 6,48,384,3072

car for $50,000. If the car depreciates 10% per year, use an exponential function to find the value of the car in 7 years.

A committee has thirteen members. There are three members that currently serve as the board's chairman, ranking member, and treasurer. Each member is equally likely to serve in any of the positions.

If you flip a coin and roll a 6-sided die, what is the probability that you will flip a heads and roll a 5?

Andrew will roll a number cube and flipping a coin for a probability experiment the faces of a number cube are labeled one through six the coin to land on heads or tails if Andrew Rosen number cube once in flips a coin ones write a list that

Let x be the total number of customers in a one-hour interval and y be the total number of female customers in the same interval. find the joint pmf of x and y.

An adult alligator may weigh 350 pounds. A newly hatched alligator weighs only 1/9 pound. The adult weighs how many times the hathling

A tailor needs 3 2/5 meters of cloth to make a poncho. How many meters does he need to make 15 ponchos of the same size?