There are 3 pints of milk in john's refrigerator how many cups of milk are in john's refrigerator

Add the fractions, and simply the result to lowest terms. 2/3 + 2/7= ?

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.

What are the measures of angles a, b, and c? show your work and explain your answers. 25 points