Answer:
The expression for the combine total dollar amount she earned this month is -t +957
Explanation:
Let t be the number of hours she worked as a tutor.
The number of hours she worked as a waitress= 87-t
Then according to the given statement, the equation will be:
Amount she earned = 10t+11(87-t)
Now solve the expression:
=10t+957-11t
= -t +957
The expression for the combine total dollar amount she earned this month is -t +957....