If prices increase 3% each year for 10 years, then a jacket that costs $70 today will cost $94.07 in 10 years. What is the percentage decrease in the buying power of currency over the 10-year period? (Round your answer to one decimal place.)

The customer price index(cpi), which measures the cost of a typical package of customer goods,was 208.8 in 2011 and 244.1 in 2016.let x=11 corresponding to the year 2011 an estimate to cpi into 2013 and 2014. assume that the data can be modeled by a straight line and the trend to continue idenfinitely.use data points to find such a line and then estimate the requested quantities