The area of the roof of a large building is modeled by the function fR (x) = 2? - 251a + 80, 000 and the area of the roof that is devoted to mechanical support is given by the function fM (x) = x² + 224x +31, 250. Given that the area of the green space is 123,750 square feet, find its dimensions.

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