The class activity average in the webcourses gradebook is the average of the six class activities and the one make$-$up assignment. The gradebook has been dropping the lowest of these $7$ grades.

Before the make$-$up assignment student A has class activity grades of $89,92,78,84,85,$ and $94.$ Their class activity average grade is $\%.$

The make$-$up activity was offered and the assignment has closed. If Student A did not take the make$-$up activity then they will have a class activity average grade of

$$

If Student A does take the make$-$up assignment and earns a grade of $70\%$ then they will have a class activity average of $6.$

Round to two decimal places.