suppose that the demand curve of apples is shown as:Q a =45-2P a +0.2Y +P b , where Q a. P a, P b , Y are the quantity demanded of apples, the price...

suppose that the demand curve of apples is shown as:Qa =45-2Pa+0.2Y +Pb, where Qa.Pa, Pb, Y are the quantity demanded of apples, the price of apples, the price of bananas, and income. respectively. Pa=1; Pb=1:Y=30

1.) Find the price elasticity of demand

2,) Find the income elasticity of demand

3.) Find the cross-price elasticity of demand