5 to 3
20
9/12 = 15/20
-8
12r-20
Iy equals to 240.
To solve the equation 8 plus what equals 20, we need to find the missing addend. We can do this by subtracting 8 from 20, which equals 12. Therefore, 8 plus 12 equals 20.
20
0.6
12
12
20
It equals 12 + 0.6 = 12.6