You have $77.25. You earn additional money by mowing lawns. Then you purchase a new pair of shoes for $69.49 and have $82.76 left. How much money do you earn mowing lawns?

What is the vertical asymptotes of the function f(x)=x-2/x*2-3x-4

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 shows the correct substitution of the values a, b and c from the equation 1=-2x+3x^2+1