Solve the problem.If P dollars are invested at a simple interest rate r (in decimals), the amount A that will be available after t years is A = P + Prt. If $1800 is invested at a rate of 12.7% simple interest, how long will it before the amount of money available is $2142.90?
A. 0.5 yr
B. 5.5 yr
C. 1.5 yr
D. 1.2 yr
Answer: C
Mathematics
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Find the sum or difference. Write the answer in lowest terms.
- 
A. 
B. 12
C. 
D. 
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Graph the equation and give the coordinates of the vertex.y = x2 - 4x - 2 
A. (-2, 2)
B. (2, -2)
C. (2, -6)
D. (-2, -6)
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Graph the ellipse and locate the foci.
+ 
= 1 
A. foci at (2
, 0) and (-2
, 0)
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, 0) and (-3
, 0)
C. foci at (0, 3
) and (0, -3
)
D. foci at (0, 2
) and (0, -2
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Mathematics