Answer:
Don't lisen to that the anwer is 0.3125
Step-by-step explanation:
280 mg = 70 Ml
280/70 = 4
50 mL x 4 = 200 mg
200 mg
Answer: I think distributive
Step-by-step explanation:
Answer:

Step-by-step explanation:
5/2.5 = X/2
To solve a proportion, use the following equation:
(numerator * opposite denominator) = (numerator * opposite denominator)
Substitute in given numbers
(5 * 2) = (X * 2.5)
Multiply to simplify
10 = 2.5X
Divide both sides of this equation by 2.5

Hope this helps :)