For example, if you figured 2000 square feet, you need 2000 square feet/100 square feet in a square = 20 squares of slate. A simple roof might be all rectangles (Area = length * width). There are often triangular sections to compute (Area = the base * height/ 2).
The average price for connecting flights from New York to Mexico City is $517. The average price for non-stop flights from New York to Mexico City is $440. The chart below shows up to date information regarding non-stop flights from New York to Mexico City.
COST About $15,000 a person, round trip from New York to Singapore. The shortest flight with SIA suites, about seven hours from New York to Frankfurt, is about $10,500. A version of this article appears in print on February 12, 2012, on page TR9 of the New York edition with the headline: New York to Dubai for $19,000.