Price elasticity of demand for GM cars is -2.0 Cross-price elasticity between GM cars and those of

Question:

Price elasticity of demand for GM cars is -2.0Cross-price elasticity between GM cars and those of its competitors is +0.5Cross-price elasticity between GM cars and gasoline is -0.3
A.Income elasticity of demand for GM cars is +1.6B. The price of competitors cars are due to rise by 8%
C. Consumer income rises by 2%
D. The price of gasoline is due to fall by 20%
E. The net effect to demand