Use a graphing utility to find the limit, if it exists.
A. Does not exist
B. 0
C. - 2
D. - 1
Answer: C
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Solve.An express train travels 267 miles between two cities. During the first 
of a trip, the train traveled through mountainous terrain. The train traveled 
per hour slower through mountainous terrain than through level terrain. If the total time to travel between the cities was 7 hours, find the speed of the train on level terrain.
A. 51 mph B. 41 mph C. 31 mph D. 21 mph
Decide whether the ordered pair is a solution of the given system.(5, -1)x + y = -6x - y = -4
A. Yes B. No
Refer to the double-bar graph below which shows the number of male and female athletes at a university over a four-year period. Solve the problem.
Which year had the greatest number of female athletes? What was the total number of female athletes that year?
A. 2004; 350 athletes B. 2004; 375 athletes C. 2005; 475 athletes D. 2005; 325 athletes
Evaluate the expression for the given values. If necessary, round to the nearest tenth.
x = 7, y = 5
A. 1
B. 
C. 3
D. 