hey can you please help me posted picture of question

There are 50 total patrons. 16 like lattes, 12 like espressos, and 8 like both drinks.
Add the two totals for patrons that like either lattes or espressos:
[tex] 16 + 12 = 28 [/tex]
8 patrons like both drinks, so subtract this from the amount of patrons that like either drink:
[tex] 28 - 8 = 20 [/tex]
20 patrons like at least one drink.
Subtract the amount of patrons that like a drink from the total amount of patrons:
[tex] 50 - 20 = \boxed{30} [/tex]
30 patrons like neither drink.