State whether the following conjectures are true or false. If false, provide a counterexample.

7. The sum of an even whole number and an odd whole number is always odd.

8. Division of whole numbers is always commutative.

Is it greater than or less than7*3_9*2

Carl's candies has determined that a candy bar measuring 3 inches long has a z-score of +1 and a candy bar measuring 3.75 inches long has a z-score of +2. what is the standard deviation of the length of candy bars produced at carl's candies?

Question 10 of 211 pointuse the elimination method to solve the system of equations. choose thecorrect ordered pair.10x +2y = 643x - 4y = -36a. (4,12)b. (-3, 11)c. (2,10)d. (-5, 8)