Answer:
HE IS 23
Step-by-step explanation:
60%
20 - Candy
* 12 - Chocolate
* 8 - dont know
12/20 × 100 = 60%
By the divergence theorem, the surface integral of across the closed surface is equal to the integral of the divergence of over the region enclosed by .
The divergence of is
Then the flux of across is
15