Just one question ty so much

Anyone? 15m is what percent of 60m; 3m; 30m; 1.5 km?

Solve for the equation. 4x - 13 = 2x + 9

Einstein office equipment has a rental plan for office machines. a fax machine that lists for $722.98 can be rented for 22% of the price annually. the state imposes a usage charge of 3.2%. if stephen hawking travel decides to rent the fax machine, what will its total monthly rental charge be?