70/81 is 7/81+7/9 as a proper fraction
So the total amount of marbles is: 20+12=32
there are 20 pink marbles
20/32 = 10/16 = 5/8 (simplified)
The correct answer is B addition
You will add 4 to both sides then the equation will be 2x=5
It is 93 million miles away from earth. hope that helped
