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Question: 1 expenditure minimization 10 points sally the sleeks preferences can...

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1 Expenditure Minimization (10 points) Sally the Sleeks preferences can be described by the utility function U(z, y)/1024. Prices are Pz 2 and py 4. (a) If Sally initially consumed 10 units of a and 5 units of y, how much could she save if she consumed 8 more (small units of z and kept utility constant?1 Therefore, can it be optimal to consume the bundle (10,5)? (4) in order to attain that utility? (4) round to two decimal places after the zero.] (2) (b) Sally decides that she wants a level of 27. What is the minimum she would have to spend (c) What is the cost of one additional (s) unit of extra utility in that case? [If you use decimals,

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