Answer:
7 comic books with Native superheroes.
Step-by-step explanation:
Total number of comic books Ethan have = 28
The ratio of comic books with Native superheroes to comic books without Native superheroes is 1:3.
Let there are x Native superheroes and 3x is without Native superheroes.
ATQ,
x+3x=28
4x = 28
x = 7
The comic books have Native superheroes = x
= 7
Hence, there are 7 comic books with Native superheroes.