Help me please .

The amount of energy it takes to lift a box might be a function of which of the following

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

If each bricks costs and he can only buy one brick how much will it cost him to get the material to put around the outside of his garden?