Math Practice Questions: Ratios, Fractions, and Word Problem…

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I need help reviewing basic mathematics concepts.

Please provide clear, step-by-step solutions for the following practice questions:

The ratio of boys to girls in a class is 3 : 5. If there are 24 boys, how many girls are there?

Simplify the fraction 18/24 and show the steps clearly.

A box contains 45 pencils. If 2/5 of them are red, how many red pencils are there?

Sarah bought 3 notebooks and 2 pens for a total of 16 dollars. Each notebook costs 4 dollars. Find the cost of one pen.

A car travels 180 kilometers in 3 hours. What is its speed in kilometers per hour?

Please explain each answer clearly and simply.

Requirements:

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