?ABC is similar to ?DEF. 
If BC = n, AB = 4n - 3, EF = 4, and DE = 15, find n and AB.
A. n = 4; AB = 45
B. n = 12; AB = 45
C. n = 
; AB = 
D. n = 3; AB = 9
Answer: B
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Find the indicated probability.In a poll of registered voters shortly before a mayoral election, people were asked which candidate they were planning to vote for. The results are shown in the table. 
Find the empirical probability that a randomly selected registered voter is planning to vote for Anderson. Round your answer to the nearest thousandth when necessary.
A. 250 B. 0.217 C. 0.138 D. 0.004
Find the sum.
A. 
B. 
C. 
D. Does not exist
Find and classify the relative extrema and saddle points of the function f(x,y) =  figure.png)
sin4y for x ? 0 and 0 ? y ? = figures 4.png)
 multiple choice.png)
Solve the problem with estimation, but do not use a calculator. Use rounding to make the resulting calculations simple.If a person earns $19,800 per year, estimate that person's hourly salary.
A. $50 B. $10 C. $40 D. $100