Self Quiz #3

General (Please, do not use calculators)

- Choose the algebraic expression for 8 more than the product of x and 7.

3

9

27

1

8 + 7x

8 + (x + 7)

7x - 8

8 - 7x

- What is the mode of the following set of numbers?

- 40, 22, 25, 31, 58, 44, 25

36

35

25

not given

- In October, Dar sold half of the horses in his stable to Joyce. In May, he bought 14 horses from Mrs. Garrett. Then he doubled the number of horses in his stable. He now has 40 horses. How many horses did "Cowboy Dar" start with in October?
6

20

16

12

- Darma is drawing a design. She puts stars in rows according to the following pattern: ( 1, 2, 4, 7, 11...) How many stars will she put in the next row?
7

16

17

18

- What is the LCM of 15, 12?
210

3

180

60

- Which number is prime?
51

63

89

77

- What number has a square root of 13?

26

169

39

339

- Coach Hoellein bought bats and balls at the sporting goods store. She paid $15 per bat and $5 per ball. She spent a total of $75 and bought twice as many balls as bats. How many of each did she buy?

3 bats and 6 balls

1 bat and 2 balls

2 bats and 4 balls

4 bats and 8 balls

- President Williamson mows 4 times as many lawns as Dean Deegan does. Together they mow 25 lawns. How many lawns does Dean Deegan mow?

4

5

15

20