Solve the system using the matrix inverse method. 5x + 4y = 84x - 2y = 22
A. {(-4, 3)}
B. {(4, -3)}
C. {(3, -4)}
D. {(-3, 4)}
Answer: B
Mathematics
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Add and simplify.
+ 
A. 
B. 
C. 
D. 
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Find the perimeter. Use 3.14 for ?.
A. 22.85 in. B. 27.85 in. C. 35.7 in. D. 30.7 in.
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Solve the problem. Round to the nearest dollar if needed.Looking ahead to retirement, you sign up for automatic savings in a fixed-income 401K plan that pays 5.5% per year compounded annually. You plan to invest $2000 at the end of each year for the next 25 years. How much will your account have in it at the end of 25 years?
A. $104,075 B. $103,603 C. $100,762 D. $102,305
Mathematics