There is no assignment for Wednesday Sept. 11. However, you will find a set of practice problems for Section 1.7 on the eGrade website at http://egrade.brownstone.net/egrade/classes/zuckerman/.
I have placed a set of three practice problems on eGrade under the heading Formula Practice. Use these problems to experiment with the Math Entry Modes and the Preview option. You should re-do these prolems until you can put the answers into forms that eGrade will recognize as correct.