if i appropriate four gram of pills a afternoon how several millileter is that a week?

None, because you can't directly equate grams to milliliters without another parameter.
It's a trick put somebody through the mill!!
Gram is a weight width
milliliter is a volume measurement
If I gain 5 pounds per week, how much taller will I be within a year?
Go to a search engine such as yahoo or google and type within 'gams to millilitres', it will bring up a list of online converters. Type contained by 4 grams, click to translate to millilitres then multiply by 7 days!
1 gram = .001 liter, so 4 grams = .004 liters = 4 mL
4 mL per light of day x 7 days = 28 mL/week.
28.413 ml
28 mills
You are taking 28,000 mL a week.
The answers in metric are correct as metric measurements are trouble-free and quick to convert. Far easier than Imperial measurements. Wish everything be that way.
Yes, we have need of a density here. If it's the same as sea, 1 gram = 1 mL so you are taking 28 mL a week, or about 1 fluid ounce.
1000 milliliters=1 lilter, (remember the liter block from chem)this weigh one kilogram, or 1000 grams, u do the rest of the math