Answer:
B
Step-by-step explanation:
The answer is B. 15 cm
Answer to question 7: -2x+5y+9
Answer to question 8: 2x-6y+1
6/8 1 1/8
84 cars
the the ratio is 7 to 2. There were 108 vehicles. 108/ 9=12
12 x 7= 84.... or at least that's how I think of it.