QUESTION 2

A $5000 investment earns $550 annual simple interest in one year. What is the annual interest rate?


11.5%

11%

12%

10.5%

QUESTION 5

Marie mixes 16 liters of 18% acid solution with a 27% acid solution to make a 21% acid solution.

How many liters of 27% solution did she use?

8 liters

12 liters

13.7 liters

16 liters