Question

What the answer to this

Answer 1

Total % = 100
Studend who do homework =70+a = 80
a=80 -70 =10 %
Students who doesn’t do homework 16+b = 20
B=20-16 = 4 %

Answer 2

Explanation:

b + 16 = 20

b = 20 - 16

b = 4%

i am sorry if this is wrong :/