Michele will sell her homemade necklaces for $8 each at a craft store. It costs her $150 for the booth rental at the craft fair. She made 200 necklaces to sell.

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?

Ineed me i stuck and i don’t want to get it wrong

Indicate the formula for the following conditions: p^c(n,r)=