Solve the problem.A bike road race starts at an elevation of 620 feet and passes through 5 stages where the elevation changes by 309 feet, -378 feet, 270 feet, -105 feet, and 252 feet. At what elevation does the race end?
A. 836 ft
B. -1934 ft
C. 1934 ft
D. 968 ft
Answer: D
Mathematics
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According to the TIMSS video study, in which country does mathematics teaching tend to most closely align with the instructional mode of "teaching through problem solving?"
a. United States b. England c. Japan d. Senegal
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Find the composition. If f(x) = 
and g(x) = 8x - 10, find (f ? g)(x).
A. 8
B. 8
- 10
C. 2
D. 2
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Solve the problem.If a roll of wallpaper costs $27, how much will 9 rolls cost?
A. $42 B. $243 C. $249 D. $36
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Find the solution(s) (if any) of the system of equations by the graphical method. If the equations are dependent, write your answer with x being arbitrary.
A. {(x, 6 - x)} B. {(1, 1)} C. {(1, 5)} D. inconsistent
Mathematics