You need 3 yards. 84 inches is 7 feet..one yard is 3 feet so order 3 yards for one panel...for 2 panels order 6 yards
9 feet of fabric
You will need 7.1 square yards of fabric.
One and a half yards of 60 inch width fabric.
I'll assume the designer did not purchase 1949 yards of fabric unless it's for Melania Trump. If that's 4 and 1/2, 6 and 2/3, and 9 and 1/4, that's 20 and 5/12 yards.
You need 3 yards. 84 inches is 7 feet..one yard is 3 feet so order 3 yards for one panel...for 2 panels order 6 yards
You would need 2 yards of fabric for a curtain that is 64 inches x 72 inches in size. This accounts for the fabric needed for both the width and the length of the curtain, with a bit of extra for hemming and finishing.
About 11-12 yards
to answer this question properly i would need to know what the pattern repeat on the fabric is and what style of heading you have chosen as the ammount will greatly vary according to those things. If you were having basic pencil pleat heading and a plain fabric (using fabric of a standard 54"width) you would need to use 1 and a half widths of fabric in each curtain making a total of 3 widths. Add 10" for hems to you r drop, making 58", multiply that by your number of widths. We work in metres here which you would need 4.5 metres which i think in yards is (rounded up) 5 yards. If you had a patterned fabric you may need more to match the patterns.
A bolt of cotton fabric for quilting is usually 15 yards; 42"-43" wide. A bolt of fleece fabric is usually 10 yards for licensed fleece fabric, and 10-12 yards for non-licensed fabric.
9 feet of fabric
There are 5.4680665 yards in 5 meters of fabric. 5 meters x 1.0936133 yards/1 meter = 5.4680665 yards 1 meter = 1.0936133 yards
There are 36 inches in one yard, so 108/36 = 3 yards, therefore Francine need another 9 yards of fabric.
If you have 6 yards (or 18 feet) of fabric and you need 14 feet (or 4 2/3 yards), you have 4 feet (or 1 1/3 yards) moe than you need.
In the USA, fabric is sold by the yard (3 feet). In metres, in most countries.
Area of first piece = 5 yards * 60 inches = 300 inch-yards Suppose length of equivalent area of 57" fabric is x yards then x*57 = 300 or x = 300/57 = 5.26 yards (approx).
You will need 7.1 square yards of fabric.