A word problem on proportions using a unit rate Lashonda made $273 for 13 hours of work.
At the same rate, how many hours would she have to work to make $231?
hours
Х
?

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