Historical data for the cost of a pound of Oreo cookies is presented below. Year 1950 1955 1960 1965 1970 1975 1980 1985 1990 Price/lb $0.49 $0.53 $0.45 $0.43 $0.48 $0.95 $1.06 $1.83 $2.69 1995 $3.63 a. Using 1960 as the base year, determine the Oreo Price Index for 1960 and 1975. b. Determine the average annual inflation rate for Oreo cookies from 1950 to 1995. c. If Mandy saved $1000 in a CD account with 10% interest in 1950, what's the buying power of the money in the account in 1995?