What was your speed if you drove 325 miles in 5 1/4 hours?

Which of the following expressions is equal to 2x^2+8

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.

Solve the following pair of equations for x and y: ax/b_ by /a= a +b; ax - by = 2ab