Anyone know the answer to this if you so please help

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?

Which ordered pair is a solution to the system of linear equations? 2x + 3y= 6 –3x + 5y = 10

If f(x) = x+8 and g(x) = 4x- 3, find (f+g)(x)