If h(x) = x – 7 and g(x) = x2, which expression is equivalent to(g*h)(5)? a (5 – 7)2,b (5)2 – 7, c (5)2(5 – 7), d (5 – 7)x2

Can someone answer these problems for me

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.

Me asap! what is the slope of this line? enter your answer in the box.