The measures of the exterior angles of a pentagon are x°, 3x° 5x°, 7x°, and 8x°. Solve for x.

Use the multiplier method to incrases £258 by 43%

On a string instrument, the length of a string varies inversely as the frequency of its vibrations. an 11-inch string has a frequency of 400 cylces per second. find the frequency of a 10-icnch string.

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 bale to prepare using the sauce?