An expression showing 5 less than the number k

Which number produces a rationale number when multiplied by 1/5

East black horse $0.25 total budget is $555 it'll cost $115 for other supplies about how many flyers do you think we can buy

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