There are 3,785 milliliters in 1 gallon, and there are 4 quarts in 1 gallon. How many milliliters are in 3 gallons? Explain.

What basic trigonometric identity would you use to verify that csc x sec x cot x = csc^(2)x

Anyone know? will mark brainliest if you're correct!

Atrain leaves little? rock, arkansas, and travels north at 90 kilometers per hour. another train leaves at the same time and travels south at 80 kilometers per hour. how long will it take before they are 680 kilometers? apart?