We take the numbers, add them together, then divide by the how many numbers there are:
(34 + 68) / 2
(102) / 2
51
Answer:
No new substance is being formed.
4 because you can take it out of both of them ( ps I'm really bad at math but I'm pretty sure I'm right)
1/2 x 1/2 x 1/2 = 1/8
then you convert it into a percent
12.5%
