Answer:
28 days
Step-by-step explanation:
2 = x
_ _
13 = 180
cross multiply
360=13x
360/13=27.69
round to 28
[tex]\Large \boxed{\sf 28 \ days}[/tex]
The chances of having a pop quiz is
[tex]\displaystyle \frac{2}{13}[/tex]
During a 180-day school year:
[tex]\displaystyle \frac{2}{13} \times 180=27.69[/tex]
≈ 28 days
