Given :
Cost of our meal = $3.45 .
Cost of friend's meal = $3.90 .
We pay $10 bill for both the thing.
To Find :
How much change do you receive.
Solution :
Total cost of meal = $3.45 + $3.90 = $7.35 .
Now, amount of change received is :
Change = Total amount - Price of meal
Change = $10 - $7.35
Change = $2.65
Hence, this is the required solution.