Question 2 (10 points) The average speed of an object is equal to the distance traveled by the object
divided by the time of travel. A car travels with an average speed of 65.0 mi/h for
0.043 days. What distance does the car travel?
Note: Your answer is assumed to be reduced to the highest power possible.

it is given that trillions of microbes make up to 1% to 3% of the body mass.

let's take average of this percentage: 2%

consider the average mass of the human body as 70 kg.

then, trillions of microbes would have mass  

therefore, 100 trillion micro-organisms would weigh:

this is an approximate value and could change depending on the mass of the human body and percentage of the microbes present in it.

average mass per microorganism =