1- Your friend Sharon says that if she skips classes today she could go to work for five hours where she earns $15 an hour. When at the college she usually parks in the campus parking lot with her annual parking permit which costs her an equivalent of $3 per day. From this, you can deduce that Sharon's opportunity cost of attending class today is

Select one:

a. $72

b. $78

c. $3

d. $75

2-Economists like to calculate the percent changes in numbers. If the price of gasoline was $3.25 a gallon last week and this week it is $3.95 a gallon, what is the percentage change in price?

Select one:

A. 82.3 percent

B. 17.7 percent

C. 33.3 percent

D. 21.5 percent