6 divided by the sum of x and 4 equals the quotient of 2 and the difference of x and 4

What is the value of x? enter your answer in the box. (cm)

It takes jonas 7 1/4 minutes to run the mile. it takes mario 8 5/12 to run the mile. how much faster is jonas than mario? 5/6 minute 1 1/3 minutes 1 1/6 minutes 1 1/2 minutesi will give points and brainlest

If the sales price of a dvd is $20 and the markup is 34%, what is the cost of the dvd?