Suppose y varies directly with x. if y=6 when x=2 find x when y=12

Marcus and cody both leave the park at the same time, but in opposite directions. if cody travels 6 mph faster than marcus and after 4 hours they are 64 miles apart, how fast is each traveling? solve using rare times time = distance.

Which value of m will create a system of parallel lines with no solution? y= mx - 6 8x - 4y = 12

Timmy uses 1 1 2 cups of sugar for every 2 gallons of lemonade he makes. how many cups of sugar would timmy use if he makes 13 gallons of lemonade?