Can u do question 1 about the cars

So, what you need do in this question is find two fifths of 30 6 goes into 30 5 times so 2 fives is 10 so the answer is 10
tell me if you have any questions.

2:5 cars were yellow ( 2 is the yellow cars: 5 is total cars)
5-2=3     
3 is the amount of other colored cars
now here is the formula;

yellow cars = #of total cars(30) divided by how many cars for every 2 yellow cars (5) times the amount of yellow cars in every 5 cars (2)

30 / 5 x 2 = 12

Thus, there are 12 yellow cars if there are 30 cars