2. Welcome to... A Game of Xs and Os

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4. 789 456 123

5. 789 456 123 Scoreboard X O Click Here if X Wins Click Here if O Wins

6. 1 A monthly cell phone plan charges $5 for the first 300 text messages and then $0.15 for each additional message. On this plan, what is the number of text messages that must be used in a month in order to make the average cost per message $0.05?

7. 1 400 Home

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11. 3 3

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13. 4 2i, -2i, 1 and -1

14. 5 A couple preparing for their wedding must choose 3 different arrangements of flowers from 10 choices and must choose 2 different cakes from 7 possibilities. How many different outcomes can there be for the couples choices of flowers and cakes?

15. 5 2,520 Home

16. 6 A red marble and a blue marble are placed in a bag. One marble is drawn at random and then placed back into the bag. If this process is repeated 5 times, what is the probability of drawing a red marble 1 time and a blue marble 4 times?

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18. 7 The beginning salary for a teacher is $30,000. Each year, a raise of $900 is given. What is the salary of a teacher who has 10 years of experience?

19. 7 $39,000

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21. 8 Hyperbola

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23. 9 1