help. how do I know which exponent to use, they use 2^4 but another exponent that works is 4^2 but it doesnt work, can someone explain how to do these

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?

If two points are given,then exactly one line can be drawn through those two points.which geometry term does the statement represent

Which pair of expressions is equivalent? a 7(1–k)and7–k b 7(1–k)and1–7k c 7(1–k)and7–k d 7(1–k)and7–7k