Two feet is what percent of a yard? and explain how i find the answer

Which of the following graphs represents the function f(x) = 2^x

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

What is the solution to the system of equation graphed belowa.(0,-4)b.(2,5),1),-3)