Hi,please help me to get the correct answers of these MCQ.Thanks.

1.Between 1994 and 2008, the share of the workforce employed in manufacturing _____, and manufacturing output _____.

a.decreased; decreased

b.increased; decreased

c.increased; increased

d.decreased; increased

2.The production function for laser eye surgery is given by Q = 20K^0.5L^0.5, where Q is the number of laser eye surgeries performed per day, K is the number of eye surgery machines (which is fixed at 2 in the short run), and L is the number of employees. The marginal product of labor for L = 3 is ____.

11.71

8.99

9.43

28.28

3.(Figure: Capital and Labor IX) The movement of the isocost line is caused by a(n):

\fCapital (K) 15 12 A 3 B Q-14 1 2 3 4 5 6 7 8 9 10 Labor (L)Capital (K) 40 36 32 28 24 20 16 12 8 2 4 6 8 10 12 14 16 18 20 Labor (1)