What is the slop of 1x+3

The number of potato chips in a bag is normally distributed with a mean of 71 and a standard deviation of 2. approximately what percent of bags contain between 69 and 73 potato chips? approximately 68% approximately 71% approximately 95% approximately 99.7%

Find the value of x for which the lines are parallel.

Thelime contains the point(-3,0) and parallel x-3y=3( show all work)