Solve. Use ? ? 3.14 when necessary.A flagpole 9 feet tall casts a shadow that is 12 feet long. Find the length of the shadow cast by an antenna which is 42 feet tall. Round to the nearest tenth if necessary.
A. 45 feet
B. 56 feet
C. 31.5 feet
D. 2.6 feet
Answer: B
Mathematics
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C. 
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Use the graph to evaluate the limit.
f(x)
A. -3 B. 0 C. 3 D. does not exist
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Write as a decimal.0.87%
A. 0.0087 B. 0.087 C. 0.87 D. 0.0097
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Solve the problem.x represents the number of textbooks purchased at $25 per book, and y represents the total amount of money spent on textbooks. What is an equation of the form y = ax for this situation?
A. y = 50x B. y = 13x C. y = 25x D. y = 75x
Mathematics