IT WOULD BE 15 CAUSE 10+5 IS 15 AND ITS THE SAME AMOUNT GOING IN AS OUT AND 15 IS GOING OUT SO 15 IS GOING IN.
Magnification of at least 400x
I believe it's totipotent, pluripotent, and multipotent.
The phrase "was really looking forward to it" creates the excited mood.
Hope this helps!