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If f(x)=3x+1 and f^-1=x-1/3, then f^-1(7)=

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

Acarton of juice contains 64 ounces miss wilson bought six cartons of juice how many ounces of juice did she buy