a.

$$\frac{7 . d}{3}$$

b.

$$\frac{3}{4} \cdot d \cdot h$$

c.

$$\frac{4 . d}{3}$$

d.

$$\frac{4 . d}{3 . h}$$

e.

$$\frac{4}{3} \cdot d \cdot h$$

Answer sheet:

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