Solve the system of linear equations by substitution. check your solution.-7x-2y=-13x-2y=11

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%

If a line is defined by the equation y = 5x + 2, what is the slope?

Which equation can be used to measure the density of water in a spherical water tank? let w represent the number of water particles within the region.