Assuming purchase costs are declining and a periodic inventory system is used, determine the statements below which correctly describe what is happening to cost of goods sold under FIFO, LIFO and weighted average cost flow methods. (Check all that apply.)

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?