In 1983, a cast-iron pan cost $28.35. today, a cast-iron pan costs $52.95. if the cpi is 166, what is the percent relation of the actual price of a cast-iron pan to the expected price?
a. the actual price is 11.1% lower than the expected price.
b. the actual price is 20.8% lower than the expected price.
c. the actual price is 31.5% higher than the expected price.
d. the actual price is 12.5% higher than the expected price.

33% of college students say they use credit cards because of the rewards program. you randomly select 10 college students and ask each to name the reason he or she uses credit cards. find the probability that the number of college students who say they use credit cards because of the rewards program is (a) exactly two, (b) more than two, and (c) between two and five inclusive. if convenient, use technology to find the probabilities.