Table 7-13
the Following Table Shows the Cost of Producing

Short Answer

Table 7-13
The following table shows the cost of producing a good for the only four producers in a market.
$$\begin{array} { | l | l | } \hline \text { Producer } & \text { Cost } \\\hline W & \$ 40 \\\hline X & \$ 30 \\\hline Y & \$ 20 \\\hline Z & \$ 10 \\\hline\end{array}$$
-Refer to Table 7-13. If the market price is $28, which producers will supply units in the market?