okay, so first you make them into fractions. I'll use the car one as an example.
Ford=40/5
Flat=34/4
Dodge=32/4
Honda=17/2
Now that they are in fractions, simplify.
Ford=8/1 or just 8
Flat=17/2
Dodge=8/1 or just 8
Honda=17/2
If you notice, Ford and Dodge have the same ratio, as do Flat and Honda. I don't know if the teacher only wants one ratio or both, it is whatever you have already learned.
Now the next one.
Peanut Butter=1/14
Macadamia Nut=3/36
Chocolate Chip=2/24
Oatmeal raisin=2/32
Simplify.
Peanut Butter=1/14
Macadamia Nut=1/12
Chocolate Chip=1/12
Oatmeal Raisin=1/16
As you can see, Macadamia Nut and Chocolate Chip both have equal ratios.
I cannot do the last one for you, but I hope my answers are beneficial for you.