A) f(x)=0.2x
B)f(12)=0.2(12)=2.4 dollars
Answer:
4
Step-by-step explanation:
Set up ratios of corresponding sides. x+2 is to 6 as 2 is to 3:

Now cross multiply to get
3(x + 2) = 12 and
3x + 6 = 12 so
3x = 6 and
x = 2. That means that side AB, x + 2, is 2 + 2 which is 4
45/X + 63/X= 108/X = Y, X= 108 divided by 2 = y, y=54
-5 Subtract 8 from -12 and divide -20 by 4 and get -5