A recipe calls for 3 cups of cheese for 12 people. How many cups of cheese for 20 people?

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.

Which of the following scenarios demonstrates an exponential decay

For the right triangle shown, the lengths of two sides are given. find the third side. leave your answer in simplified, radical form.