Simplify the rational expression. Find all numbers that must be excluded from the domain of the simplified rational expression.
A. 
, x ? - 
B. 
, x ? - 
C. 
, x ? - 
, x ? - 
D. 
, x ? - 
, x ? - 
Answer: C
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Provide an appropriate response.Determine whether a linear or quadratic function would be a more appropriate model for the graphed data. If linear, tell whether the slope should be positive or negative. If quadratic, decide whether the coefficient of x2 should be positive or negative. CRIME STATISTICS 
Years since 2000
A. Quadratic; positive B. Linear; positive C. Quadratic; negative D. Linear; negative
Evaluate the expression for the given replacement values.x - y + z for x = 18, y = 8, z = 5
A. 5 B. 31 C. 15 D. 16
Round the amount to the nearest cent.$6.37897
A. $6.39 B. $6.37 C. $6.379 D. $6.38
A carpenter’s square can be used to find the distance across a pond, as follows. Place the square on the top of a pole which is tall enough to allow you to sight along one side of the square to the opposite side of the pond. Fix the square and sight along the other side of the square to a point Q on the ground. If QA = 1' and AB = 5', find AP, the distance across the pond.
