4. Assume you have a daily income of US$21 and the prices of commodities Pand Q are $3 and $2 respectively, and that the utility data are as shown in Table 2. Units Product P (Price = $3) 12345 6 MU 42 36 30 24 18 12 Product Q (Price: $2) MU 24 15 12 9 7 5 (a) What quantities of each will you purchase to maximize utility? (b) What total utility will you realize from consumption of commodity Q? [2 ma