You are debating about whether to buy a new computer for $800.00 or a refurbished computer with the same equipment for $640.00. if you are paid $10.00/hour and your deductions are fica (7.65%), federal tax withholding (12%), and state tax withholding (8%), how many hours do you have to work to pay for the refurbished computer?

111 hours

98 hours

89 hours

87 hours

First calculate all the deduction

FICA = $10 per hour x 0.0765 = $0.77 per hr

Fed tax = $10 per hr x 0.12 = $1.2 per hr

State tax = $10 per hr x 0.08 = $0.8 per hr

Remaining pay = 10 – 0.77 – 1.2 – 0.8 = $7.23 per hour

Time required = $640 / $7.23 per hr

Time required = 89 hrs

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.'