Dana is building a wooden birdhouse for her mom. She finds a plank in the garage to use for the base. When she realizes it's too long, Dana cuts 3 inches off the plank. Now it's the correct length of 8. 25 inches.
Which equation can you use to find the length p of the plank before Dana cuts it?
1. P-3=8. 25
2. P/3=8. 25
3. P+3=8. 25
4. 3p=8. 25