The flight from Atlanta to Mexico City would cost you from $1,100 to $1,300 (one-way, coach).
$50 per sec
A one-way ticket from Denver to Mexico City would cost you from 350 to 450 dollars, depending on flight class, nonstop vs many stops and the season you are traveling on.
500 doollers
It depends from your departure city and the airline of your choice. Your best bet is to google for airfares from one city to the other and you will obtain several offers and pricers from which you can choose from.
On average, it would cost between 50,000 and 100,000 Mexican pesos (USD 3000 - 6000). It would include the actual ceremony and the banquet. More elaborate weddings -- i.e. on a resort city, or including fancy dinner -- would duplicate or triplicate the cost.
A bentley in Mexico cost $200 pesos
It depends on where are you staying. Prices range from US$300-500 on cheap hotels to more than $5000 on places like the Four Seasons in Mexico City.
A non-stop, round trip on economy/coach would cost you some USD$650 (CAD$670) through Air Canada. There are of course cheaper flights, being the cheapest through US Airways, stopping in Charlotte and then going to Mexico City for a cost of USD$460 (CAD$470).
You would have to drive 2,407 miles (3900 Km) from DC to Mexico City. With a mileage of 25 miles per gallon for the average SUV, you would spend 97 gallons of fuel. At $2.25 per gallon, you can expect to spend some US$218.25 for your trip to Mexico. Note it may be costlier if you refuel in other states, or in Mexico.
$4.00 btw a first grader would know that
It would greatly depend on origin and destination.