Find the y -ntercept of y= 3.75 - 1.25x

Simplify the expression 10/11(22z) + (a+5) -1

How to find the exponential function y=ca^x, with points (1,2) and (2,1)

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