The minimum wage does not impact the distribution between factors but leads to a lower output.
c) What would be the consequences of establishing a maximum wage equal to 3 units of Q? What if the maximum wage were 2? Explain.
Establishing a maximum wage of 3 would not change anything because the maximum wage would be above the market equilibrium wage rate. Indeed, we know from question 3)a)iii) that the equilibrium wage is of about  2.544. Establishing a maximum wage equal to 2 units of Q however would result in more labor demanded than supplied since 2 is lower than the market equilibrium wage rate. In other words, there would be a shortage of labor.
The quantity of men demanded would be derived from the equality between the marginal productivity of labor and the wage. Hence we have:
\(\frac{\partial Q}{\partial M} = \frac{10}{3}M^{-\frac{2}{3}}A^{\frac{2}{3}}=2\)
\(M = (\frac{10}{6})^{\frac{3}{2}}A\)
If the supply of A were still equal to 6, the demand for M per firm would equal:
\(M = (\frac{10}{6})^{\frac{3}{2}}*6 \approx 12.909\)
So in total, the demand for M would be equal to about 1290.994. There are however only 900 men. Since it is stipulated that the labor supply is inelastic, the labor supply will be equal to 900. Acreage will only be demanded to the point where marginal cost divided by the price is equal for each factor, i.e. to the point where \(\frac{MP_M}{P_M} = \frac{MP_A}{P_A}\).
\(\frac{\partial Q}{\partial M} = \frac{10}{3} M^{-\frac{2}{3}}A^{\frac{2}{3}} = 2\)
\(\frac{10}{3}*9^{-\frac{2}{3}}A^{\frac{2}{3}}=2\)
\((\frac{A}{9})^{\frac{2}{3}}= \frac{3}{5}\)
\(A=(\frac{3}{5})^{\frac{3}{2}}*9 \approx 4.183\)