3(x-2) + 7x = 1/2(6x-2)

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?

What is the solution to the equation? k/6.4=8.7 2.3 5.568 15.1 55.68

Graph the equationy=x^2 -[tex]y = x^{2} - 2[/tex]