Answer:
The weigth of the sphere is approximately 161 pounds.
Step-by-step explanation:
In order to calculate the weigth of the sphere we first need to calculate it's volume, since it's a sphere it's volume is given by the following formula:
volume = (4/3)*pi*r³
volume = (4/3)*pi*(8)³ = 2144.6605 inches³
Since it weigths 0.075 pound per cubic inch, we must multiply the volume by that number in order to know it's total weigh.
weigth = volume*0.075
weigth = 2144.6605*0.075 = 160.8495375
The weigth of the sphere is approximately 161 pounds.