Yolanda is buying supplies for school. she buys n packages of pencils at 1.40 per package and m pads of paper at 1.20 each. what does each term in the expression 1.4n+1.2m represents ? what does the entire expression represent?

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