Earl Miller, owner of a Papa Gino's franchise, wants to buy a new delivery truck in 6 years. He estimates the truck will cost $30,000. If
Earl invests $20,000 now at 5% interest compounded semiannually, will Earl have enough money to buy his delivery truck at the end
of 6 years?

Explanation:

To find how much money Earl Miller, owner of Papa Gino's franchise, will have in 6 years, you must calculate the value of the $20,000 that he invests at the 5% compounded semiannually:

Equation:

Where r/n was already calculated: r/n = 0.05/2 = 0.025; and t is the number of years: 6.

Hence the value of the money invested is less than the value of the truck, and he will not have enough money to buy his delivery truck at the end of 6 years.

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.'

answer; closing the loop;