2 2/4-1 3/4 not as a improper fraction

Rewrite the following without an exponent. (5/8)-1

You are a male who just graduated from college with a bachelor's degree. you have a job paying $50,780.00/yr. a. how does your salary compare to the yearly median earnings for a male with a bachelor's degree? b. what is the difference between the yearly median earnings for a male with a bachelor's degree compared to a male who does not attend college after earning a high school diploma?

Find the value of the variable and the length of each chord for #5 and #6.