A=R, B=S, C=P, and D=Q
hope this helps!
Im pretty sure its A, but dont count on me!!! i hope it helps :/
The answer to ur question is 20. You just need to set it up into proportions
In this equation, we are solving for f. The first thing we have to do is get rid of the denominator, so we have to multiply both sides by 9, which leaves us with 9C=5*(f-32). Then we divide both sides by 5, which is 9/5C=f-32. The last thing we have to do is add 32 to both sides to isolate f, which gives us our final equation of (5/9)C+32=f.