Solve the problem.Paul has $20,000 to invest. He puts x dollars in a safe government-insured certificate of deposit paying 5% per year. He invests the remainder of the money in noninsured corporate bonds paying 12% per year. His total interest earned at the end of the year is given by the algebraic expression 
Determine the amount of interest earned at the end of the year if he invests $6000 in the government-insured certificate of deposit.
A. $1782
B. $1980
C. $2820
D. $3420
Answer: B
Mathematics
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B. 
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