Eight 9s do not equal 100. 9 + 9 + 9 + 9 + 9 + 9 + 9 + 9 = 72
One way: 99 + 9/9 = 100
Eleven.
20
You have to combine equal terms. -5r-9s+9r+3s-6 = -5r+9r-9s+3s-6 = 4r-6s-6
Eight 9s do not equal 100. 9 + 9 + 9 + 9 + 9 + 9 + 9 + 9 = 72
9^2+9+9 +9/9 81+9+9+1=100
One way: 99 + 9/9 = 100
Five 9s:(99 x 9 + 9) / 9 = 100
9÷9+99 or 99+9÷(9)
Eleven.
20
You have to combine equal terms. -5r-9s+9r+3s-6 = -5r+9r-9s+3s-6 = 4r-6s-6
No. But if the 9s go on for ever - the infinitely recurring decimal fraction - will equal 1.
(9*9)+(9+9)+(9/9) = 100
11
0.04