A circular garden has a circumference of 50 yards. Lars is digging a straight line along a diameter of the garden at a rate of 4 yards per hour. How many hours will it take him to dig across the garden? Use 3.14
for it and round the diameter to the nearest whole number, if necessary.

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?