Eva invested a certain amount of money at 15% interest and $2,000 more than that amount at 16%. Her total yearly interest was $1,715. How much did she invest at each rate?
A. $2,000 at 15%, $4,500 at 16%
B. $4,500 at 15%, $6,500 at 16%
C. $4,700 at 15%, $6,300 at 16%
D. $4,700 at 15%, $6,700 at 16%
E. $6,500 at 15%, $4,500 at 16%
Answer: B
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Write the system of equations that corresponds to the augmented matrix.
A. 
B. 
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D. 
In the following question(s), FN represents the Nth Fibonacci number.Using scientific notation, the value of F500 is approximately 1.394 × 10104. Use the fact that FN ? ?FN-1 to approximate the value of F499.
A. 8.616 × 10103 B. 2.618 × 10104 C. 6.956 × 10103 D. 1.618 × 10104 E. 2.255 × 10104
Provide an appropriate response.A person amortizes a loan of $180,000 for a new home by obtaining a 30-year mortgage at the rate of 8.7% compounded monthly. Find (a) the monthly payment, (b) the total interest charges, and (c) the principal remaining after 10 years.
What will be an ideal response?
Find all solutions to the equation.4 sin 2 x - 4 sin x + 1 = 0
A. 
B. 
C. 
D. 