Pre-lab Week 3: Density

“Show all calculated work for full credit.”

So both of them I have to turn it in online. However the pictures I took with my phone I have to answer them on my paper and then take a pic of it and send it to the teacher. It was the homework from the lab I’ve done some of the work in the lab class but I didn’t finish it so can you complete the ones I didn’t do? Or correct some of them if they’re wrong. Thank you!