1. The mathematical statements below are all linear inequalities in two variables except . A: 3p-r > B. x + 5x 3 10 C. 30 < 4 m + 6 D.28 ≤ 7m +n

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