You can only simplify the expression, because it doesn't equal anything. If you simplify it it would be:
4n-1 + 3n-7
4n+3n + -1-7
7n-8
$11,000 because 10 percent would be that you use extra per one
You multiply 12x8.3 and get the answer 100
Answer:
16
Step-by-step explanation:
i hope this helps