Gavin wants to buy a jacket that sells for $38.95.an advertisement says that next week that jacket will be on sale for $22.50.how much will gavin save if he waits until next week to buy the jacket?

solution=
38.95-22.50=16.45

can i do right or wrong plz tell me

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?