Your employer contributes $75 a week to your retirement plan. Assume that you work for your employer for another 20 years and that the applicable discount rate is 7.5 percent. Given these assumptions, what is this employee benefit worth to you today

This employee benefit is worth $40,384.69 today.

Explanation:

a) Data and Calculations:

Employer contributions per week = $75

Period of work for the employer = 20 years (20 * 52 = 1,040)

Applicable discount rate is 7.5%

PV = $40,384.69

Sum of all periodic contributions = $78,000.00 ($75*20*52)

Total Interest= $37,615.31

b) The worth of the employee benefit equals the present value of all the contributions by the employer and the accompanying interest, compounded weekly at 7.5% per annum for a period of 20 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.'