C₁ * V₁ = C₂ * V₂
18 * V₁ = 6.0 * 250
18 V₁ = 1500
V₁ = 1500 / 18
V₁ = 83.33 mL
hope this helps!
I personally thinks it’s A
The action was him hitting the ball the reaction was the ball moving after being hit
I have heard they can use hair is stocking or nets to absorb the oil out of the water