The student will have $135 in her bank account at the end of the ninth week. You can fine this out by finding out the amount she deposits a week and to do this you would take the $30 and divide it by 2 because she had $30 at the end of the second week. 30/2=15 So you see that the student deposits $15 each week, so to find out how much money she will have in 9 weeks you will multiply her $15 by 9. 15x9=135 So the student will have $135 at the end of the ninth week.
