It takes 5.667 yards to equal 17 feet.
No, 3 feet = 1 yard. It would take 6 feet to equal 2 yards.
15 of them because 15 feet = 5 yards
250 feet = 250/12 yards = 2.833 yards it takes 100-2.833 yards
It takes 4 yards to make 12 feet.
There are 27 feet in 9 yards because 3 feet = 1 yard
Since there are 3 feet in a yard it takes 300 feet to make 100 yards.
3 feet = 1 yard So 413 ft = 137 yards 2 feet.
122.2 square yards.
You need one more piece of information. One other dimension (if a rectangular area), in feet, of the area you are using/measuring. Take "the other dimension in feet" and divide it by 9. Assuming your other dimension is 12 feet, 12/9 = 1.333333, therefore in your case do this 4840/1.333333 = 3630 lineal feet. Warning, this only works on rectangular areas.
About 3.
38.67 square yards, 40 to be on the safe side.