Anna earned some movie money by shoveling the driveway. sHe shoveled 1/5 of the driveway after school, then 1/2 of what was left after she did her math homework, then finished the remaining 200 square feet after supper.
2 answers
And your question is?
presumably we want to find the original area to be shoveled. If that was x, then
x(1/5 - 2/5) = 200
x(1/5 - 2/5) = 200