Ben walked into a hardware store and asked the price of some items. the salesman said: one costs $1 eight costs $1 seventeen cost $2 one hundred four costs $3 one thousand seventy two costs $4 what was ben buying?

When amy exercises in her fitness center for 1 hr she burns a total of 475 calories.if she burns 9 calories a minute jogging on the treadmill and then burns 6.5 calories a minute pedaling on the stationary bicycle how many minutes of the hour does she spend exercising on the bicycle?