Graph the parabola and label the vertex. Find the y-intercept.y = 
x2 + 8
A. vertex (0, 8), y-intercept (0, 8)
B. vertex (0, -8), y-intercept (0, -8)
C. vertex (0, 8), y-intercept (0, 8)
D. vertex (0, -8), y-intercept (0, -8)
Answer: C
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The scores on a 30-point multiple-choice exam are given in the following frequency table:
What is the median score on the exam?
A. 26 B. 25.5 C. 25 D. 26.5
Solve the problem.To find the distance between two small towns, an electronic distance measuring (EDM) instrument is placed on a hill from which both towns are visible. If the distance from the EDM to the towns is 
and 
and the angle between the two lines of sight is 
what is the distance between the towns? Round your answer to the nearest tenth of a mile.
A. 4.8 mi B. 3.6 mi C. 4.4 mi D. 3.1 mi
Find the sum.- 
+ 
A. 
B. 
C. 
D. 
Write the expression with positive exponents. Then simplify if possible.
A. 
r-2
B. 
r2
C. 
D. 