You've been given the following demand function for Good A QA =42 213A +6133 0.1m where PA is the price of Good A, P3 is the price of Good B, and m is income. Assume PA = 18, P3 = 4, and m = 100. (a) What is the own-price elasticity? Round to two decimal places as needed. (b) Interpret the number you found above. What type of good is this? (0) Calculate the cross-price elasticity. Round to two decimal places as needed. What type of good is this