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A Game of X’s and O’s

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X

O

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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?

1

400Home

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2

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3

3Home

4

4

2i, -2i, 1 and -1Home

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 couple’s choices of flowers and cakes?

5

2,520Home

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?

6

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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?

7

$39,000Home

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HyperbolaHome

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9

1Home