didn't get these ones, thank you in advance

Question 9 of 10 Attempt 1 of 2 What happens when the government begins charging a per-unit tax on a previously untaxed good? O A. The quantity demanded decreases. )B. The quantity sold increases. O C. The quantity sold decreases. D. The quantity supplied increases.Question 50 of 50 The marginal revenue product curve shows: O)A. a positive relationship between the price of a resource and the output it generates. ()B. a positive relationship between the price of a resource and the quantity firms will want to use. O C. a negative relationship between the price of a resource and the output it generates. O D. a negative relationship between the additional revenue an input generates and the level of output. O E. None of these