Which function has the same range as y = csc

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

Which graph represents the equation y =4x

Bring the fraction a/a-4 to a denominator of 16-a^2