It takes 120 minutes for a hose to fill a swimming pool. If the pool is open, it takes 360 minutes to fill the pool. If the pool is full, the hose is off, and the drain is open, how many minutes does it take to empty the pool?

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