Biologists are studying a new bacterium. They create a culture with 100 of the bacteria and anticipate that the number of bacteria will increase at a rate of 2.5% every 20 hours. How many bacteria will there be in 50 hours?

Haquira is baking cookies to put in packages for a fundraiser. shaquira has made 8686 86 chocolate chip cookies and 4242 42 sugar cookies. shaquira wants to create identical packages of cookies to sell, and she must use all of the cookies. what is the greatest number of identical packages that shaquira can make?

Astore has 20% off sale of pants. whith this discount , the pricw of one pair of pants before tax is $15.20. what was the original price of the pants?

Describing the rules ot signea numbers quick check complete these sentences to describe the rules of dividing signed numbers.