A cable car suddenly slackens while crossing an 86 m wide gorge. The cable makes an angle of depression of 57 degrees at one end and 40 degrees at the other end. How long is the cable that holds the car?

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?