A 6 3/4 inch candle burns down in 9 hours. How far has it burned in 5 1/2 hours? Use the drop down menu to state your answer as a decimal, mixed number, or improper fraction. Please help me!

Write the point-slope form of the line passing through (2, -12) and parallel to y=3x.

Me n o w. i need t h i s. 10 points

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?