Natasha puts $\displaystyle {x}$ dollars into an investment with an interest rate of 3 percent per year and $\displaystyle {y}$ dollars into an investment with an interest rate of 12 percent per year. She invests a total of $9100, and her interest earnings after one year are $678. From this information, we can create two equations: one for the total investment and one for the interest earned.

The equation that describes the total investment is Preview Question 6 Part 1 of 2  

The equation that describes the interest earned is Preview Question 6 Part 2 of 2