Answer:
b
Step-by-step explanation:
30÷5=6
4×5=20
for every 30 green lights there are 20 white lights
Answer: x=4
Step-by-step explanation: Look at pic below to see how solved.
Answer:

Step-by-step explanation:
Both 32 and 40 are divisible by 8.
32÷8=4
40÷8=5
Thus, the simplest form is 
Answer:
69.08
Step-by-step explanation: