The document discusses several math concepts including: - A line graph showing temperature changes throughout the day, peaking at 70 degrees Fahrenheit at 4pm then decreasing. - A student selling calendars and raffle tickets to raise funds, calculating their total earnings. - Measures of central tendency (mean, median, mode) for a data set of heights, and how an outlier affects these values. - Solving various math equations for unknown values. - Identifying patterns in number sequences. - Dividing snacks evenly between friends to calculate the maximum number of bags.

1. Graphing and Statistics Number Concepts Introduction to Algebra: Whole Numbers and Decimals

2. 1200 employees

3. Line Graph, shows change in growth over time

4. The temperature rose until 4 p.m. and then began to fall. The high temperature was 70 degrees Fahrenheit Time Temperature ∘ F 10 a.m. 62 12 noon 65 2 p.m. 68 4 p.m. 70 6 p.m. 66

5. A. Consumption was greatest during the first year of introduction. B. Consumption was greatest during the late 1990s. C. Consumption will decrease in the mid-2000s. D. Consumption leveled off from 2005 to 2006. D

6. 32

7. A school is having a fund-raiser in which the students sell calendars and raffle tickets. Each calendar costs $12. Each raffle ticket costs $7. If a student sold 7 calendars and 5 raffle tickets, evaluate 7 • 12 + 5 • 7 to find how much money the student should collect.

8. Mean 20 Median 21 Mode 21 Range 11 Heights of Vertical Jumps in inches 13 23 21 20 21 24 18

9. (9 + 10 × 2) – 8 + 27 ÷ 3 2 = 20

10. 3m = 45 m = 15

11. Write in exponential form. 6 × 6 × 6 × 6 6 4

12. What type of graph is most appropriate for comparing the miles of coastline in six states? Bar graph State AL FL GA LA MS TX Miles of Coastline 33 770 101 397 44 367

13. Evaluate 2x + 5 when x = 7 19

14. Solve for p. 15 = p 2 p = 30

15. Which graph best displays the data? 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 X X X X X X X X X X X X X X X X X X X Time 20 Students Spent Studying Over Two Weeks 1 2 3 Stem Leaves 56667799 001111223 57 Study Time 1 5 = 15 Stem and Leaf Line Plot Hours B. Line Plot

16. If the ages of seven people that reached the top of Mt. Everest are 28, 31, 31, 32, 33, 33, and 64, what is the outlier? 64 Which measure of central tendency is most affected by the outlier? Why? Mean increases the most. The 64 does not change the mode, 31 and 33 still occur most. The median or middle is 32 with the outlier and the average of 31 and 32 without the outlier. Mean Median Mode With Outlier 36 32 31 and 33 Without Outlier 31.3 31.5 31 and 33

17. Solve for k. 47 + k = 80 k = 33 - 47 - 47 0 33

18. Solve for y. 7.2 + y = 9.8 y = 2.6

19. Identify the pattern. Then name the next two terms in the sequence. 275, 250, 225, 200, ___, ___ Subtract 25: 175, 150

20. Shelby is making snack bags for her friends. She has 30 peppermints and 25 chocolate bars. If each of her friends receives a bag with an equal number of peppermints and an equal number of chocolate bars, how many snack bags can she make? 5 bags

21. 10, 10, 12, 13, 14, 14, 15, 16 Mode 10 and 14 What is the median of the data? Median 13.5