Hello!
1st lets start off like this:
50 x 98 = <span>4,900
4,900 x 87 = </span><span>426,300
426,300 x 87 = </span><span>37,088,100
37,088,100 x 87 = </span>3,226,664,700
3,226,664,700 x 64 = <span>206,506,540,800
</span>
206,506,540,800 x 34 = <span>7.0212224e+12
</span>
7.0212224e+12 x 98 = <span>6.880798e+14
</span>6.880798e+14 x 100 = 6.880798e+16
Hope this Helps! Have A Wonderful Day! :)
The 4 treads require 4*10.25 = 41 inches, but you also require landings at each level, adding perhaps 72 inches. (Building codes vary.)
Somewhere between 41 and 113 inches of horizontal space will be required, perhaps more.
Let x be the original position.
After the first play they gain 9 yards. The position can be represented by
x + 9
After the second play they lose 22 yards. The position can be represented by
x + 9 - 22 = x - 13
Therefore, in total they lost 13 yards.