Graph the solution region for the system of inequalities and identify the corners of the region.
A. 
B. 
C. 
D. 
Answer: C
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For the triangle, based on the side lengths given, decide whether it is equilateral, isosceles, or scalene. 
A. isosceles B. equilateral and isosceles C. scalene
Simplify the expression. Assume that all variables are positive when they appear.
A. 2y4 
B. 2x7y8 
C. 2x3y4 
D. 2x3y4 
Divide.
A. 6.25 B. 5.25 C. 0.19 D. 5
The graph of the function f shown in the accompanying figure gives the elevation of that part of the Boston Marathon course that includes the notorious Heartbreak Hill. Determine the intervals (stretches of the course) where the function f is increasing (the runner is laboring), where it is constant (the runner is taking a breather), and where it is decreasing (the runner is coasting).
?
?
A. Decreasing on 
and 
, increasing on 
and 
, and constant on 
and 
B. Decreasing on 
and 
, increasing on 
and 
, and constant on 
and 
C. Decreasing on 
and 
, increasing on 
and 
, and constant on 
and 