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### Question

Write an equation for the following statements.

1. The cost C of fish varies directly as its weight w in kilograms.

2. The area A of a square varies directly as the square of its side s.

3. The distance D travelled by a car varies directly as its speed s.

4. The volume V of a cylinder varies directly as its height h.

5. The weight W of an object is directly proportional to its mass m.

### Answer #1 for Questions: Write an equation for the following statements.

1. The cost C of fish varies directly as its weight w in kilograms.

2. The area A of a square varies directly as the square of its side s.

3. The distance D travelled by a car varies directly as its speed s.

4. The volume V of a cylinder varies directly as its height h.

5. The weight W of an object is directly proportional to its mass m.

**Answer:**

1. C = kw

2. A = ks²

3. D = ks

4. V = kh

5. W = km

**Step-by-step explanation:**

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