2. how does a manufacturer set his or her total output to maximize profit?
a set production so that total revenue plus costs is greatest
b determine the largest gap between total revenue and total cost
c set production at the point where marginal revenue is smallest
d determine where marginal revenue and profit are the same

Amountain climber starts a climb at an elevation of 453 feet above sea level at his first rest stop he has climbed 162 feet and by his second rest stop he has climbed another 207 feet its getting late in the day so the climber starts his way down if the climber desends 285 feet how much does he need to ascend or descend to return to the original starting point