Solve Express Your Answer as a Signed Number $1 \frac{1}{9}$ Pounds Per Week
B)

Multiple Choice

Solve. Express your answer as a signed number.
-Hillary lost 23 pounds in 18 weeks. What was her average weekly change in weight?

A) $1 \frac{1}{9}$ pounds per week
B) $-1 \frac{7}{18}$ pounds per week
C) $-1 \frac{2}{9}$ pounds per week
D) $-1 \frac{5}{18}$ pounds per week