<h2>The answer would be the third one:</h2><h2 /><h2>5/2 ; 5 to 2; 5:2</h2><h2 /><h2>The others don't make sense, especially the first and last one. The first and last one are basically saying 2 tubas for every 5 flutes, which is the other way around. Also, the second one would've been right, but it has 2 to 5</h2>
