Last year,Maria spent $2,388 for natural gas.This year,she decided to use balance billing.What will her monthly payment be this year?

A portfolio earned 20%, 15%, -10%, 25%, and -5% in five successive years. What was the portfolio's five-year equivalent annually compounded rate of return?

Add the fractions $\frac{2}{12}+\frac{9}{12}$ and write the result in simplest form.

A) $\frac{1}{8}$
B) $\frac{11}{24}$
C) $\frac{3}{4}$
D) $\frac{11}{12}$
E) $\frac{3}{2}$