The answer is 8/3 or 2 2/3 for the first one.
849-1.5=847.5
6.8-4.8=2
847.5 divided by 2 =423.75
Independent quantity (x) is number of races won
dependent quantity f(x)...or y is total virtual money
the function is : f(x) = 500x + 5000 or y = 500x + 5000
The triangles are similar because two angles have the same measurements