Find the compound interest for an investment of $3,000 at 7.5% for 4 years. Round to the nearest cent.

The number of revolutions of two pulleys is inversely proportional to their diameters. if a 24-inch diameter pulley making 400 revolutions per minute is belted to an 8-inch diameter pulley, find the number of revolutions per minute of the smaller pulley.

The roots of the function f(x) = x2 – 2x – 3 are shown. what is the missing number?

Three people are traveling and need to exchange the currency of their native country for the currency of the country they are visiting. drag each exchange to the category that shows the ratio of currencies in that exchange.