Question-1 (Finding the optimal bundle) (25 points) Suppose Alex's utility function for apple and orange is U(a, o) = a o. The price of an apple is $ 4, and the price of an orange is $ 2. Alex has $ 120 to spend on these two goods. at the bundle (a, o) = (4, 2) the marginal rate of substitution MRS(a, o) = _ _ _ - Given prices, income, and utility function, the best affordable bundle for Alex is a* = and