Solve the system, if possible.
?
?
A. 
B. 
C. 
D. 
E. no solution; inconsistent system
Answer: B
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Use the sum-of-the-years'-digits method of depreciation. Round to the nearest dollar.Scot Cleaners bought a new trouser press for $7000 and estimates its life at 4 years at which time the salvage value is expected to be $700. Find the amount of depreciation each year.
A. $2520, $1890, $1260, $630 B. $3500, $1750, $875, $175 C. $1575, $1575, $1575, $1575 D. $2800, $2100, $1400, $700
Write the percent as a fraction or mixed number in lowest terms.
%
A. 
B. 
C. 6
D. 
Identify the type of graph.-x2 - 8x + 2y2 + 4y = 0
A. The graph is a circle with center 
.
B. The equation has no graph.
C. The graph is a hyperbola opening to the right and left.
D. The graph is an ellipse with center 
.
Use Cramer's rule to solve the system. If D = 0, use another method to complete the solution.2x + 8y + 4z = 16x + 4y + 2z = 8x + y + z = -2
A. ? B. {(-2, 3, -1)} C. {(-1, 3, -2)} D. {(-2, -1, 3)}