Answer:
<em>The expression that represents her gross pay each day will be:
dollars.</em>
Step-by-step explanation:
Suppose, Harriet's gross pay each day 
So, her total gross pay for 7 work days 
Given that, her gross pay at the end of 7 work days is
dollars.
So, the equation will be.......

Thus, the expression that represents her gross pay each day will be:
dollars.