A town was concerned about the growing number of harbor seals in their town's bay. They tagged 15 seals and sent them back into the bay. After two months they checked a sample of 40 seals. Three of the seals in the sample were tagged. Estimate how many seals are in the bay.

How many solutions does the nonlinear system of equations graphed bellow have?

Arestaurant chef made 1 1/2 jars of pasta sauce. each serving of pasta requires 1/2 of a jar of sauce. how many servings of pasta will the chef be able to prepare using the sauce?

Assume that there is a 11% rate of disk drive failure in a year. a. if all your computer data is stored on a hard disk drive with a copy stored on a second hard disk drive, what is the probability that during a year, you can avoid catastrophe with at least one working drive? b. if copies of all your computer data are stored on four independent hard disk drives, what is the probability that during a year, you can avoid catastrophe with at least one working drive?