Let x be the hours that erica babysits. Write an expression to show the total number of hours erica works each week

x

Step-by-step explanation:

With no other information given, if she works x hours in a week, then the expression is simply x.

7x

Step-by-step explanation:

If x is the hours that erica babysits, and 7 is the 7 days of the week. You will get that expression.

Because it is an expression, you cannot have an equal sign. It is an equation that has the equal sign.