Practice

• A. 13

• B. 26

• C. 29

• D. 42

• E. 48

• A. 11

• B. 16

• C. 20

• D. 24

• E. 32

19. Loto begins at his back door and walks 8 yards east, 6 yards north, 12 yards east, and 5 yards north to the barn door. About how many yards less would he walk if he could walk directly from the back door to the barn door?

• A. 8

• B. 19

• C. 23

• D. 26

• E. 31

• A. -1.9

• B. -0.9

• C. 0.0

• D. 0.9

• E. 1.9

24. The set of all positive integers that are divisible by both 15 and 35 is infinite. What is the least positive integer in this set?

• A. 5

• B. 50

• C. 105

• D. 210

• E. 525

• A. 80%

• B. 71%

• C. 65%

• D. 41%

• E. 29%

27. On the first 7 statistics tests of the semester, Jamal scored 61, 76, 79, 80, 80, 84, and 91. The mean, median, and mode of his scores were 79, 80, and 80, respectively. On the 8th statistics test, Jamal scored 90. How do the mean, median, and mode of all 8 of his scores compare to the mean, median, and mode of his first 7 scores?

• A. Mean is equal, median is greater, mode is greater

• B. Mean is greater, median is greater, mode is greater

• C. Mean is greater, median is greater, mode is equal

• D. Mean is greater, median is equal, mode is greater

• E. Mean is greater, median is equal, mode is equal

30. The average of a list of 4 numbers is 92.0. A new list of 4 numbers has the same first 3 numbers as the original list, but the fourth number in the original list is 40, and the fourth number in the new list is 48. What is the average of this new list of numbers?

• A. 81. 0

• B. 92. 0

• C. 94. 0

• D. 94. 4

• E. 96. 6

42. Which of the following expressions is equal to

(𝑠𝑖𝑛 60°)(𝑐𝑜𝑠 30°) + (𝑐𝑜𝑠 60°)(𝑠𝑖𝑛 30°) ?

• A. 𝑐𝑜𝑠(60° − 30°)

• B. 𝑐𝑜𝑠(60° + 30°)

• C. 𝑠𝑖𝑛(60° − 30°)

• D. 𝑠𝑖𝑛(60° + 30°)