II. Write the following statements in symbols. Use k as the constant of variations.
6. The cost (c) of pig varies directly as its weights (w).
7. The volume (v) of water produced from melting ice varies directly as the volume (i) of
ice.
8. The perimeter (p) of a square varies directly as its side (s).
9. The wage (w) of a worker earning pesos per hour varies as the number of hours (h) he
works.
10. The area of a circle (A) varies directly as the square of its radius (r).​