How do you write 7.4 as a mixed number simplified

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?

Points a, b, and c form a triangle. complete the statements to prove that the sum of the interior angles of triangle abc is 180

How can you construct perpendicular lines and prove theorems about perpendicular lines