Answer:
August=$350
September=$560
October=$210
November= $280
Step-by-step explanation:
Total amount left to save $1400.
We calculate the amount save each mount since we are already given the percentages.
For the month of August she saves 25% of $1400, we convert the percentage to equivalent cash
![\frac{25}{100}*1400\\=350](https://tex.z-dn.net/?f=%5Cfrac%7B25%7D%7B100%7D%2A1400%5C%5C%3D350)
for the month of August, she saved $350,
Next For the month of September she saves 40% of $1400, we convert the percentage to equivalent cash
![\frac{40}{100}*1400\\=560](https://tex.z-dn.net/?f=%5Cfrac%7B40%7D%7B100%7D%2A1400%5C%5C%3D560)
for the month of September, she saved $560,
Next For the month of October she saves 15% of $1400, we convert the percentage to equivalent cash
![\frac{15}{100}*1400\\=210](https://tex.z-dn.net/?f=%5Cfrac%7B15%7D%7B100%7D%2A1400%5C%5C%3D210)
for the month of October, she saved $210,
total amount saved by October = $350+$560+$210=$1120
Amount saved by November=1400-1120=$280