It is given in the question that
Ben has a collection of 812 stamps. He gives his brother 345 stamps.
And we have to find how many stamps does Ben have left .
Let x stamps are left.
So we have

Subtracting 345 from both sides


Therefore after giving 345 stamps to his brother, 467 stamps are left .
What do you need help with? Nothing is showing :/
Answer:
65
Step-by-step explanation:
I beilieve its 3:1. I am not completely sure though
The question is asking 15+2*9=? so to do this first multiply 2*9 which = 18 and then add 15, 18+15= 33