The optimal amount of x 1 , x 2 , P 1 , P 2 and income are given by the following: The original prices are: P 1 =21 P 2 =1 The original income is: I...

The optimal amount of x1, x2, P1, P2 and income are given by the following:

The original prices are: P1=21  P2=1

The original income is: I =2,461

The new price of P1 is the following: P1'=104

Assume that the price of x1 has changed from P1 to P1'. What is x1*A ?