Answer:
[tex]\Huge \boxed{\mathrm{\bold{a)} \ < \ }}[/tex]
[tex]\rule[225]{225}{2}[/tex]
Step-by-step explanation:
1 - 5 __ 9
Subtract.
-4 __ 9
We know that -4 is less than 9.
The “less than” symbol is “<”.
[tex]-4<9[/tex]
[tex]\rule[225]{225}{2}[/tex]
