Parallel lines s and t are cut by a transversal, r, as shown.

What is the measure of angle 1?

Prove that the value of the expression 7^8–7^7+7^6 is divisible by 43.

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

What is the slope of the line that contains the points (-5, 6) and (14. - 7)?