Answer:
The scientist used 786 milliliters
Step-by-step explanation:
Given that the scientist use 0.786 liters of liquid for a math experiment, to know how many milliliters he used, we consider that
1 liter = 1000 milliliters
Let 0.786 liters = x milliliters
Then we have:
x = 0.786 * 1000
= 786