Answer:
80 students
Step-by-step explanation:
12/80 is 0.15 or 15%
The definition is pretty simple:

So, we only have to sum the expressions:

Answer:
Step-by-step explanation:
2+b/ b pretend this is a fraction
The answer would 2, since you cannot divide anything by 0 as it would be undefined. 2 is the only number that gives you this option
Answer: it increased by $403. He ended with $6603
Step-by-step explanation: since he started off with $6200, you would move the decimal over two places (.065) and then multiply 6200 and .065 to get $403.