7th Grade Math STAAR 2023 review part 3

A musician wants to buy sound equipment. He has saved $750. He plans to add $130 to this amount every month for the next 12 months and not spend any of the money he saves until he can afford the equipment. Which percentage is closest to the percent increase from the original amount of money he has saved to the amount he will have at the end of 12 months?

• 480%

• 32%

• 208%

• 68%

The perimeter of a rectangle is 32 inches.

🎱The rectangle has a width of 4 inches.

🎱The rectangle has a length of 2.5x inches.

Which equation can be used to find the value of x?

• 4 + 2.5X = 32

• 8 + 5x = 32

• 4(2.5X) = 32

• 8(5x) = 32

A family makes homemade pickles. they pack the pickles at a rate of 80 pickles per 5 jars. Which answer choices best represent packing y pickles in x jars at that rate?

Select TWO correct answers.

• y = 16x

• y = 1/16x

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The net of an equilateral triangular prism and some of its dimensions are shown in the diagram. The height of each triangular base is approximately 5.2 cm.

Which measurement is closest to the lateral surface area of the prism in square centimeters?

• 162 cm²

• 280.8 cm²

• 193.2 cm²

• 54 cm²

The table shows a linear relationship between x and y.

Create an equation that describes the relationship shown int he table.

Move the correct answer to each box. Not all answers will be used.

y = ​ (a)   x + ​ (b)  

• -1/3
• -3
• -9
• 1/3
• 3
• 9

A cutting board is created with congruent light pieces and congruent dark pieces of wood, as shown in the figure. All angles are right angles.

What is the combined area of the dark pieces of wood in square inches?

• 399.75 in.²

• 877.5 in.²

• 478.5 in.²

• 253.5 in.²

Which number line best represents the solution to the inequality -4 + 29 > 19?

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• 
• 
• 

A garden contains 50 plants. The number of tomato plants is twice the number of bell pepper plants. The number of cucumber plants is the same as the number of watermelon plants. The remainder of the garden consists of squash plants. The circle graph shows the percentages of some of the types of plants in the garden.

Which statements are true?

Select THREE correct answers.

• The number of tomato plants is 16

• The total number of cucmber and bell pepper plants is 18

• Over 50% of the plants are tomatoes and bell peppers

• Watermelon and cucumber plants combined are 40% of the plants

• Cucumber plants are 26% of the plants

Which equation is true when x = -3?

• 5x + 1 = 16

• 4x - 8 = 12

• -2x + 9 = -12

• 3x - 6 = -15

A deli makes sandwiches using 1 type of bread, 1 type of meat, and 1 type of cheese for each sandwich. The sandwich options are shown in the table.

What is the probability that a customer will randomly choose a sandwich that is made using white bread, ham, and cheddar cheese?

• 1/2

• 1/3

• 1/6

• 1/12