Find the following characteristics for the given graph I NEED HELP FAST PLEASE TAKING TEST

Acomputer store bought a program at a cost of $10 and sold it for $13. find the percent markup

If the ratio of sum of the first m and n terms of an ap is m2 : n2 , show that the ratio of its mth and nth terms is (2m − 1) : (2n − 1).

Which expression do you get when you eliminate the negative exponents of 4a^2 b^216a^-3 b