Does anybody know the answer to this?

Closing a credit card usually _your debt ratio.a. increasesb. decreasesc. improvesd. has no effect on

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 is the correlation coefficient between the variables? round to three decimal places. enter your answer in the box