May I please get some help with this question? No further information is provided, aside from the attached screenshot.

In 2015, Apple introduced the Apple Watch. Assume that the cost of producing the 38mm Apple Watch Sport was $79. The price was $358. What was Apple's price/marginal cost ratio? What was its Lerner Index? Iprple is a short-run prot-maximizing monopoly, what elasticity of demand did Apple believe it faced? Apple's price/marginal cost ratio was D. (Enter your response rounded to two decimal places.) The value of Apple's Lerner Index (L) was D. (Enter your response rounded to two decimal places.) Apple's elasticity of demand (a) is D. (Enter your response rounded to two decimal places and include a minus sign.)