North lake High school has two lunch periods.... select the true statement

Answer:
Option D.
Step-by-step explanation:
Northlake high school has two lunch periods. Students can eat their lunch in the cafeteria or on an outside patio.
Percentage of students who have first lunch eat outside= [tex]\frac{\text{Eat outside}}{\text{Total of first lunch}}[/tex] = [tex]\frac{(.17)(100)}{.55}=31[/tex]%
Similarly percentage of second lunch students eat outside= [tex]\frac{\text{Eat outside}}{\text{Total of second lunch}}[/tex] = [tex]\frac{(0.21)(100)}{(0.45)}=47[/tex]%
Therefore, option D is the correct option.