10.
50+(2x)=20+(5x)
-20 -20
-2x -2x
30=3x
divide both sides by 3
10=x
Turn the triangle around, because you have to reflect it, if you need extra help lmk
Step-by-step explanation:

Because There are 3 feet in 1 yard, so 3 feet and 1 yard are the same thing, hence a 1:1 ratio.
Depends what Ferrari car it is.