The answer is b) parking tickets because everything else helps you in one way or another. For example, coupons help you get a discount on an item. Frequent flier miles gives you points for flying and buy-one, get-one free, you buy one and well you get one free. Parking tickets do not help you save anything. They help the people who gave them earn money.
It is D 110,000,000 or 110 million
It's C the great plains. they're located in Central America which is also known as the great plains.
