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.
-Mardi received an inheritance of $70,000. She invested part at 10% and deposited the remainder in tax-free bonds at 9%. Her total annual income from the investments was $6600. Find the amount
Invested at 10%.

A) $29,000
B) $15,000
C) $30,000
D) $63,400