4.4. Consider two goods, A and B. The price of good A increases from R6 to R8 per unit. As a result of this, the quantity demanded for good B decreases from 200 units to 190 units. With this in mind, answer the following questions: 4.4.1. Given the information above, calculate the cross-price elasticity of demand using the midpoint (arc) formula. 4.4.2. Are the goods A and B substitutes or complements? 4.4.3. Give two real-world examples of goods like A and B. (2) (1) (2)