Answer:
[tex]\sf 13m+16p[/tex]
Step-by-step explanation:
[tex]\sf 9m+p+12p+4m+3p[/tex]
[tex]\sf combine \:like \:terms[/tex]
[tex]\sf \:9m+4m=13m[/tex]
[tex]\sf p+12p+3p=16p[/tex]
