Kristina just won the lottery, and she must choose among three award options. She can elect to receive a lump sum today of $62 million, to receive 10 end-of-year payments of $9.5 million, or to receive 30 end-of-year payments of $5.6 million.
(a) If she thinks she can earn 7% annually, which should she choose?
(b) If she expects to earn 8% annually, which is the best choice?
(c) If she expects to earn 9% annually, which option would you recommend?
(d) Explain how interest rates influence her choice.

a. Best deal is 30 end-of-year payments of $5.6 million

b. Best deal is 10 end-of-year payments of $9.5 million

c. Best deal is lump sum today of $62 million

Explanation:

Please see attachment for workings.

d. As the interest rate increases, the duration of value shortens. That is as the interest rate increases, the best choose based on their payment duration reduces

ans.

heterothermic organisms include those organisms that can switch between homeothermic (having body temperature higher than environment) and poikilothermic (having variation in internal body temperature) strategies.

some migratory birds show heterothermy as they decrease their metabolic rate during cold nights to keep their body temperature low. drop in metabolic rate allows increase in production efficiency of birds that reduces the internal body temperature to make it equal to external cold temperature during cold nights.

thus, the correct answer is 'birds allow their temperature drop in order to increase their production efficiency.'