Me i don’t know what the answer is

Me with this one question, and i'll upvote the brainliest answer

Multiply sixth of sixty six by a half of ten show step by step method

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?