Gene is tossing a normal quarter. He tosses the quarter 12 times and it lands on heads 9 times. If Gene tosses the quarter again, what is the probability that it lands on tails

One pipe fills a storage pool in 3 hours. A second pipe fills the same pool in 3 hours. When a third pipe is added and all three are used to fill the pool, it takes only 1 hour. Find how long it takes the third pipe to do the job alone.

2. The area of a rectangle is 4w - 10 square units. a. Factor this expression. b. Given your answer in part A, describe what you can conclude about the dimensions of the rectangle in two or more complete sentences

A submarine was cruising at a depth of 425 feet below sea level. Find the depth of the submarine after it ascends 245 feet

A statistics teacher created a homework completion incentive program. If a student completes all of their homework for the entire chapter, their name is written on the board in a numbered list.

If 72° is used ti represent 4 people. How many people were there altogether?

The imaginary monster Dracula is 576 years old, according to legend. Since that very first birthday long ago, when he happily blew out 1 candle on a cake decorated with drippy red frosting, how many birthday candles has he blown out in his whole

I had $5.00. My mom gave me $10.00 while my Dad Gave me $30.00. My aunt and uncle gave me $100.00. I had another $5.00. How much did I have? I won against Tada Yazhe

To weigh your cat, you hold it while you step on the scale. By yourself, you weigh 130.6 pounds. Holding your cat, you weigh 142.5 pounds. How much does your cat weigh?

At the start of the 20th century, there were about 100,000 tigers in the wild. In 2014 there were about 3,200. What percent did the population decrease

A group of volunteers has been collecting toys to deliver to a local charity. Over the last 7 days, the volunteers have collected 581 toys. What has been their collection rate, in toys per day? 581 toys.