Answer:
There are 7 parts in all.
9 makes up three of those parts.
9/3=3
3x7=21 vehicles
Step-by-step explanation:
21
1) 3:4=9:12
2) 9+12=21
Answer: 70.1
Solve by using the quadratic formula.
x=1+-i√5 / 6
50/x
