90 by 156 will make how many yards of table cloth for a rectangular
You need at least 4 yards of fabric to make a 70 inch round table cloth. Most people would use close to 6 yards to make the designs that they'd like to.
If the table height is 29 inches standard then 96 inches is perfect fit which gives the drop up to the floor.
One and a half yards of 60 inch width fabric.
It depends on how wide the fabric is, and how wide the table cloths are. Assuming the width of the fabric is the same as the required width of the table cloths, the answer is 150ft / 2 yards = 50 yards/2 yards = 25
2 and 2/3 yards.
2.6yards
About 11-12 yards
Well well well what do we have here.
We suspect that the size of the table could have some effect on the correct answer, sowe're going to wait to work on the problem until we know the table's measurementsand which parts of the table the fabric has to cover..
An 8 foot long table is probably 30" wide. So, you'll need to cover 8 ft + 30 in + 30 in = 13 linear feet. To allow for the gathering you will want to double the length (26 feet) or approximately 9 yards.
You don't say what shape of table. However, for a table cloth you need to measure the length and width of the table plus 12" overhang on each side. For example, if your table is rectangular 72" long and 30" wide you'll need fabric 96" long and 54" wide minimum (plus you'll need to add a little extra to allow for hemming; maybe another inch per side). In the event your table is round, you'll need enough fabric for 98" x 98" (hem allowance included).