Total revenue for producing 8 units of output is $48. Total revenue for producing 9 units out output is $63. Given this information, the: A. Average revenue for produce 9 units is $1
B. Average revenue for producing 9 units is $15
C. Marginal revenue for producing the 9 unit is $1
D. Marginal revenue for producing the 9 units is $15

D. Marginal revenue for producing the 9 units is $15

Explanation:

TR(8) = $48

TR(9) = $63

MR(9) = TR(9) - TR(8) = $63 - $48 = $15

AR(8) = TR(8) / 8 = $48/8 = $6

AR(9) = TR(9)/9 = 63/9 = $9

Note: TR=Total revenue, AR= Average Revenue and MR=Marginal Revenue

So, the only correct option is option d

answer; the landlord can sue the renter,and the renter loses the security deposit;

answer; intellectual property protection;