Answer:
8
Step-by-step explanation:
If you count up, 3 is 1 million and 8 is 10 million.
<span>Subtract u from 7, then divide v by the result</span>
v : (7 - u)
The sum will be:
sigma(i = 1 to infinity, 30*(2/5)^i)
->

Which is equal to 30/(3/5) = 50
Does it say Marcella's age?