Answer:
D
Step-by-step explanation:
-3(2m-1)-n
open the bracket
-6m+3-n
rearrange
-6m-n+3
No it’s 19 because if u have 9 fingers and then add 10 more fingers with it u get 19
A lever in like a pully becasue it can pull just as so. Hope that helped. It is what my teacher taught me.