One of the legs of a right triangle measures 2 cm and the other leg measures 15 cm. Find the measure of the hypotenuse. If necessary, round to the nearest tenth. Hurry

You’re ordering more thread for blue jeans co. you usually purchase from ted’s threads, which sells 12 thread spools for $27. you recently received a notice from wade's wares that says you can buy thread from them for $2.30 each for the first 2 dozen and $2 a spool thereafter. you need to order 5 dozen spools. what percentage can you save by going with wade’s wares?