Equation and Inequality

• 3

• 12

• 18

• 27

• 5

• 10

• 15

• 50

• 7

• 12

• 27

• 32

• 8

• 10

• 18

• 26

Teresa is going to save $5 per week.

Which equation could be used to determine the total amount of money Teresa will save in W weeks?

At a national park, a trail rises no more than 3 feet above sea level. Which graph shows the solution for this inequality?

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Xavier is buying notebooks for school. The table shows the number he can buy and the total cost.

Which equation can be used to find the total cost, y , of n notebooks?

In order to make a profit, a car dealer needs to sell at least 75 cars each month. Which number line shows a graph representing this situation?

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James attends a summer camp for that is for anyone 12 years or younger. Which inequality represents the age limit, a, at the camp?

After four rounds, 32 students were eliminated from a spelling bee. There are 98 students remaining. Which equation and solution represent the number of students that started the spelling bee?

• 98 – x = 32;

  x = 66

• x – 32 = 98;

  x = 130

• 2(32) – x = 98;

  x = 34

• 2(32) + 98 = x;

  x = 162