First, it is important to know the prices of each of the instruments in order to determine the number of djembe drums you had sold. Since it is not given here. I will give a general equation where you just substitute the prices. It would be as follows:
The answer Is one million milligrams (tongue twister) to find this out you simply know that a kilogram is 1000 times a gram and a gram is a thousand times a milligram. 1000x1000= 1,000,000 Your welcome. BRAINLIEST PLEASE