Radical Equations and Extraneous Roots — Unit test Answers

Edmundo used a number line to show the solution for the inequality . Which number line shows the solution?

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What is the solution to the inequality ?

The graph below represents c, the amount a phone company charges, based on m, the number of minutes the customer uses each month. If there are a maximum of 44,640 minutes in a month, which equation best represents the phone company’s monthly charges?

You are challenged to a lucky draw game. If you draw a face card (K, Q, J) from a standard deck of cards, you earn 10 points. If you draw any other card, you lose 2 points. What is the expected value of a draw?