When graphing a system of equations with no solution, the y-intercept of the two lines will be .

The number of chocolate chips in an 18-ounce bag of chocolate chip cookies is approximately normally distributed with a mean of 1252 chips and standard deviation 129 chips. (a) what is the probability that a randomly selected bag contains between 1100 and 1500 chocolate chips, inclusive? (b) what is the probability that a randomly selected bag contains fewer than 1125 chocolate chips? (c) what proportion of bags contains more than 1225 chocolate chips? (d) what is the percentile rank of a bag that contains 1425 chocolate chips?

Write the point-slope form of the line passing through (2, -12) and parallel to y=3x.

How many sides does a regular polygon have if each exterior angle measure is 45 degrees explain your answer, i really don't understand this.