Caisha has a circular garden with a radius of 4 ft. She needs to put a layer of soil on top. Each bag of soil covers 9.42 square feet. How many bags of soil will she need to buy?

The garden’s area is πr² = π × 4² = 16π, or about 50.27 square feet. Divide by 9.42 square feet per bag: 50.27 ÷ 9.42 ≈ 5.34. Since she can’t buy a fraction of a bag and needs enough soil to cover the whole garden, she should buy 6 bags.

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