-4/11 y = -16/33 Helppp its Equations with Rational Coefficients!!

If ac = 12 and ab=7 is it possible that bc =10

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?

The border line of the linear inequality 4x + 7y < 5 is dotted true or false?