Use the Following Table, Showing the Total Output Produced with Various

Short Answer

Use the following table, showing the total output produced with various levels labor and each of two levels of capital to answer the questions.
Units of Capitel
$\begin{array}{l}\text { Units of }\\\begin{array}{ccc}\text { Labor } & \mathrm{K}=2 & \mathrm{~K}=4 \\\hline 1 & 20 & 40 \\2 & 50 & 100 \\3 & 70 & 140 \\4 & 80 & 160\end{array}\end{array}$
-When capital is fixed at 2 units
a. AP decreases after the ______ unit of labor. MP decreases after the ______ unit of labor.
b. At L = 2, AP = ______ and MP = ______.
c. At L = 3, AP = ______ and MP = ______.
d. At L = 4, AP = ______ and MP = ______.