6 and 30. 6 is 1/5 of thirty. If the first number is x,that means that the second number is 5x. Combine like terms. 6x = 36. 36/6 = 6. x = 6. The first number is 6. the second number is 5x. Replace x with 6. 5 * 6 = 30. 30 is the second number.
Answer: He should have used the mean to determine the average because the data sets are approximately symmetric.
Step-by-step explanation
