Math Concepts Quiz

Write the ratio of 18 green marbles to 24 blue marbles in simplest form.

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A car travels 180 miles in 4 hours. What is its unit rate in miles per hour?

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If 5 notebooks cost $7.50, how much would 12 notebooks cost?

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Are the two ratios 9:12 and 15:20 proportional? Show your calculations.

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Find the greatest common factor (GCF) of 45 and 60.

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Determine the least common multiple (LCM) of 6, 8, and 12.

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Simplify the fraction 36/48 using the GCF.

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Use the least common multiple to solve: What is 5/6 + 2/9?

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Calculate the area of a triangle with a base of 8 cm and a height of 6 cm.

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A rectangle is divided into two triangles. If the rectangle's dimensions are 12 cm × 9 cm, what is the area of each triangle?

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