Respuesta :

Answer:

4.5

Step-by-step explanation:

=13-(3+1)/2

=13-(4)/2

=13-4/2

=9/2

=4.5

tmarsheuna

Answer:

11

Step-by-step explanation:

[tex]1. \: 13 - 4 \div 2 \\ 2. \: 13 - 2 \\ 3. \: 11[/tex]