thank you so much! i still don't get it when my teacher said you had to multiply it first. then subtract it and add something.thank you though.

Was it a problem like this?

How much did Celest pay for a shirt that was originally $20 but was marked 10% off?

100 - 10 = 90

0.9 * 20 = 18

Another way to do that problem?

0.1 * 20 = $2.00

20 - 2 = 18

You're welcome! I'm glad I could help. It seems like you're referring to a mathematical problem or equation where your teacher mentioned multiplying, subtracting, and adding something.

To understand the specific problem, I'll need more information. Could you please provide the equation or problem statement? That way, I can explain the steps involved in solving it in a clear and precise manner.