Friday, you did a number of problems for 5.3
Tonight, you will finish the section. 7-40 all
Do not recopy any of the problems you have already done. We will correct Friday's work, then the new problems assigned today.
Show your cancelling (simplifying) of labels as was done in class. Don't forget all the labels as you work along. This will be an important skill in science classes, particularly in physics. Trust me.