Using the following equation for the demand for a good or service, calculate the price elasticity of demand,cross price elasticity with good x, and income elasticityt.
Q= 8 - 2p + 0.10I + Px
Where Q is quantity demanded, p is the price, I is income, and Px is the price of a realeted good, Assume that p=$10,I =100, and Px=20.