Alvin is 12 years older than elga. the sum of their ages is 112. what is elga's age?

The solution set for 5v2 – 125 = 0 is

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

There were 25 students who answered to a survey about sports. four-fifths of them like football. how many students like football?