Which of the following will NOT lead to a leftward shift in the Aggregate Supply curve? a. An increase in the price of coco to produce chocolate bars. b. OPEC cuts back oil production to the United States and other countries c. AT and T uses robotics to produce cell phones. d. Hurricane Katrina destroyed the farmlands to produce agricultural products in the U. S.

Anew firm is developing its business plan. it will require $615,000 of assets, and it projects $450,000 of sales and $355,000 of operating costs for the first year. management is reasonably sure of these numbers because of contracts with its customers and suppliers. it can borrow at a rate of 7.5%, but the bank requires it to have a tie of at least 4.0, and if the tie falls below this level the bank will call in the loan and the firm will go bankrupt. what is the maximum debt ratio the firm can use? (hint: find the maximum dollars of interest, then the debt that produces that interest, and then the related debt ratio.)a. 41.94%b. 44.15%c. 46.47%d. 48.92%e. 51.49%