Explanation
Step 1
let
x= the time Julie does her homework
Step 2
convert words into math terms
Julie does her homework either between 4:00 and 6:00,
[tex]\text{ 4 }<\text{ x}<6[/tex]Julie does her homework between 8:00 and 10:00 p.m.
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[tex]8Step 3now, solve the inequalities
[tex]\begin{gathered} 4Julie can work either option 1 OR option 2, so the answer is a union [tex](4,6)\cup(8,10)[/tex]