Answer:
21 and 35
Step-by-step explanation:
21 for the first box, when it is in parenthesis you multiply each, so then 35 for the second box
7 times 3 then 7 times 5
Result: 4020342569677260278

therefore, the sum of this infinite geometric series can be calculated using the formula
.
So, 
If 2 is the sum of this infinite series, then you'll never reach it.
64-18 is 46
46/2 is 23
23+18 is 41
Your #s are 21 and 43
Answer:

<h3>8 is the right answer.</h3>