$Q_x=60-2P_x+14P_Y-6P_Z-8I$

Assume that $P_x=9,P_Y=10,P_Z=2$ and suppose that the average income is $$15,000$ annually $)=(15.$

Compute the price elasticity of demand for good X$.$ Give an interpretation.

Compute the cross$-$price elasticity between goods $x$ and $Y.$ Give an interpretation.

Compute the cross$-$price elasticity between goods $x$ and $Z.$ Give an interpretation.

Compute the income elasticity of good X$.$ Give an interpretation.