Answer:
[tex]\tt{} - 4[/tex]
Step-by-step explanation:
[tex]\tt{} - 20 \div 5[/tex]
[tex]\tt{} - (20 \div 5)[/tex]
[tex]\tt{} - 4 \\ \\ \\ [/tex]
=a is the correct answer because = -20÷5= -4
