Account a and account b both have a principal of $1,000 and an annual interest rate of 4%. no additional deposits or withdrawals are made. account a earns simple interest. account b earns interest compounded annually. compare the amounts in the two accounts after 20 years. which earns more interest? how much more?

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