(x^2-9)/(x+1) ÷ (x^2-6x+9)/(7x+7) reduced form?

a) 7(x-3)^2 b) 7(x+3) c) 7(x-3) d) 7(x+3)^2

x+3 x-3 x+3 x-3

X-intercept=-5 y-intercept=2 the equation of the line is

Look at arnold's attempt to solve the equation for b: 3b = 12 b = 3 · 12 b = 36 describe the mistake that arnold made.

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