Solve the system by any method.
A. (0, 0)
B. ?
C. (-3, 2)
D. {(x, y) 
}
Answer: D
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Solve the problem.The polynomial function 
represents the yearly income (or loss) from a real estate investment, where t is time in years. After how many years does income begin to decline?
A. 9.33 yr B. 7 yr C. 6 yr D. 14 yr
Use the graph to estimate any solutions to the given equation on the interval 
cos2x = 
A. 
, 
, 
, 
B. 
, ? , 
C. 
, 
D. 0, ?
Evaluate the algebraic expression for the given value or values of the variable(s).
;
x = 7
A. 
B. 6
C. 3
D. 4
Solve the problem.A vendor sells hot dogs, bags of potato chips, and soft drinks. A customer buys 2 hot dogs, 4 bags of potato chips, and 3 soft drinks for $9.00. The price of a hot dog is $1.50 more than the price of a bag of potato chips. The cost of a soft drink is $3.00 less than the price of two hot dogs. Find the cost of each item.
A. $2.25 for a hot dog; $0.75 for a bag of potato chips; $1.00 for a soft drink B. $2.00 for a hot dog; $0.50 for a bag of potato chips; $1.00 for a soft drink C. $0.50 for a hot dog; $2.00 for a bag of potato chips; $1.00 for a soft drink D. $2.00 for a hot dog; $1.00 for a bag of potato chips; $0.50 for a soft drink