Three people become infected with a virus that spreads quickly. Each day that passes, the number of infected people doubles. How can the number of infected people be determined from the number of days that have passed?

A 41 41-foot ladder is leaning against a building. The base of the ladder is 9 9 feet from the side of the building. How high does the ladder reach along the side of the building?

You are playing an online game with your friend and they are on level 4. You are on level 6 and can beat, on average, 4 levels per hour.

Pipe A can fill a swimming pool in 12 hours. Pipe B can fill the same swimming pool in 9 hours. How long will it take for Pipe A and Pipe B to fill the pool together?

If x = 49, what is the value of x (x-10)

Judging from recent experience, 10% of the shoes by an automatic, high-speed machine are defective. if six shoes are randomly selected, what is the probability that none of the shoes are defective?

Tony has 7/8 of a candy bar. He wants to split the bar into serving that are 3/10 of the bar. How many servings can he make?

7am one morning detectives find a murder victim in a closed meat locker. The temperature of the victim measures 88. Assume the meat locker is always kept at 40, and at the time of death the victim's temperature was 98.6.

How many fourths are there in 2 1/4?

The area of pennsylvania is 46,055 square miles. the area of florida is about 1.428 times larger than pennsylvania. what is the area of florida to the nearest square mile?

Find the quotient of ' (16t^2-4) / (8t+4) '