I need help determining the y- value of each ordered pair based on the given x- value

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?

Multiply. write your answer in simplest form. 3/8 x 5/7

Which shows the first equation written in slope-intercept form? 1/2 (2y + 10) = 7x