You currently are spending $80/year renting a pressure washer to clean your house. the cost of a new pressure washer is $800. if you bought the pressure washer, how many years would it take to obtain full payback on your original investment relative to renting (use a simple payback calculation).

(a) what do you think will happen if the price of non-gm crops continues to rise? why? (b) what will happen if the price of non-gm food drops? why?

Dr. sperry, a biologist, is using excel to track growth rates of different populations of bacteria. she has a very complex formula in one cell. it begins with “round”. dr. sperry would like to see exactly how excel’s calculation reached the final rounded value that she sees in the cell. what could dr. sperry do to best understand how the calculation was made? try different formulas on her own until she reaches the value shown in excel click on the evaluate formula button in the formulas tab and then click “step in” select the cell and then look at the formula in the formula field of the ribbon remove “round” from the formula in order to see the actual value before rounding

As the inventor of hypertension medication, onesure pharmaceuticals (osp) inc. was able to reap the benefits of economies of scale due to a large consumer demand for the drug. even when competitors later developed similar drugs after the expiry of osp's patents, regular users did not want to switch because they were concerned about possible side effects. which of the following benefits does this scenario best illustrate? a. first-mover advantages b. social benefits c. network externalities d. fringe benefits