GRE
The percent of the job that was not completed by the end of the day last Wednesday
42%
The area of a circular region with circumference 10
9
$$\frac{(a+b)^{2}-b^{2}}{a+2b}$$
$$a$$
$$\frac{a}{a-1}$$
$$\frac{a+1}{a}$$
The fraction of the cookies in the full jar that were not eaten by either Michael or Tess
$$\frac{5}{7}$$
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