A farmer wishes to enclose two identical adjoining rectangular pens against the side of a large barn. She wants each pen to have an area of 800 square feet and will use the barn as one side of the enclosure. What is the least amount of fencing needed (in feet) to create the two pens

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?