Can someone explain this to me im so confused and i have a test tomorow

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 inequality statement describes the two numbers on a number line? "? 7 and a number 5 units to the right of ? 7"

The area of the map is the product of the length and width. write and expression for the area as the product of the two binomials do not multiply