Answer:
745.31+50.60w=1,099.51
W=7
Explanation:
1st subtract 1099.51 from 354.20
2nd use your answer which is 745.31 and add that with how much she plans on saving for how ever long
3d to find out how many weeks which is 50.60*w you need to first minus 745.31 from both sides
4th so 745.31- 745.31 and 1099.51-745.31 =354.2 or .20
5th divide 354.2 by 50.60 =7
So overall w= 7