What is the advantage of using an array of telescopes?

The north and south regions had very diferent economies in the 1800s.

What type of file does a cookie place on web site visitors' computers so that web site managers can customize their sites to their visitors' preferences?

In cell b18, enter a formula to calculate the amount budgeted for meals. this amount is based on the daily meal allowance and the total travel days (# of nights+1).