Work. Do Not Solve

Multiple Choice

work. Do not solve.
-5x + 9y = -12
-4x - 4y = -32
A) Substitution B) Addition
Answer: B
Write the word or phrase that best completes each statement or answers the question.
-Andy has 17 coins made up of quarters and half dollars, and their total value is $5.25. How many quarters does he have?

A) 6 quarters
B) 18 quarters
C) 13 quarters
D) 4 quarters