Repeat Worked-Out Problem 10.4 (page 328) but assume that in Angela's view one kg of food this year and one kg of food next year are perfect complements. In other words, assume that her indifference curves are L-shaped, and that the corner of the L in each curve lies on the 45-degreeline.Angela earns $70 this year and $30 next year. How much does she consume this year and how much does she save? What's a formula for her saving as a function of the interest rate R. Does she save more, less, or same amount when the interest rate rises?