Final answer:
Carriers offer better rates if clients give them revenue miles through credit card usage.
Step-by-step explanation:
Carriers will offer better rates if clients give them revenue miles in credit card usage.
According to the provided information, 35% of respondents use a credit card that gives them a mile of air travel for every dollar they charge. Additionally, 30% of the respondents charge more than $2,000 per month, with 80% of those using a credit card that gives them a mile of air travel for every dollar they charge. This data suggests that credit card usage, particularly those with miles rewards, can be used as a parameter for obtaining better rates from carriers.