Which list below contains only abiotic factors? Rocks, air, water, sunlight
Air, sunlight, rabbits, grass
Rabbits, grass, hawks, mice
moss, algae, rocks, air
PLEASE HELP?

Solve for x by completing the square. 2x^2-4x+7=0

Suppose i pick a jelly bean at random from a box containing one red and eleven blue ones. i record the color and put the jelly bean back in the box. if i do this three times, what is the probability of getting a blue jelly bean each time? (round your answer to three decimal places.)

Apassenger train and a freight train leave san jose at 3pm, traveling in the same direction. the passenger train is going three times as fast as the freight train. at 6pm they are 240 miles apart. how fast is each travelling? explain your answer and show your