(2) Three students are struggling in their course and plan to hire a tutor to help them prepare. The tutor's wages are $2o per hour. The marginal benet of each hour of tutoring is given in the followin_ table. L02 Number of Student 1's Student 2's Hours Marginal Benet Marginal Benet 1st hour 12 I 1? and hour 1o 15 I 3rd hour 4th hour 511] hour 6th hour I 7th hour Table Summary: Exercise 5. Student 3's Marginal Benet 6 5 4 3 2 1 o a. Sketch the marginal benet curve of each drama student and construct the marginal social benefit curve. b. Determine how many hours the three students should hire the coach for. No. of hours Moe'sMB barney'sMB Quily's MB Marginal social benefits 12 17 35 2 15 5 3 0 13 4 2 15 O D- - 5 b of wage - $20 then 4 hours of labor should be hoied