Tamara bought 4 pack of move tickets $42.50 .How much does the single ticket cost. (3)which digit is in the hundreds place of the cost of a single ticket when rounding to the nearest cent

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?