Solve the system by the method of your choice. Identify systems with no solution and systems with infinitely many solutions, using set notation to express their solution sets.y = 
x + 3x - 2y = -6
A. {(-6, 0)}
B. {(0, 3)}
C. {(x, y)|x - 2y = -6}
D. ?
Answer: C
Mathematics
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Find the limit, if it exists.
A. Does not exist
B. - 
C. 0
D. 
Mathematics
Solve the problem.Midtown Antiques has found that sales have decreased 2% from last year. Sales this year are $172,766. Find the amount of last year's sales. Round your answer to the nearest dollar.
A. $177,292 B. $176,292 C. $176,192 D. $176,282
Mathematics
The function f is one-to-one. Find its inverse.f(x) = 5x - 7
A. f-1(x) = 
B. f-1(x) = 
C. f-1(x) = 
+ 7
D. f-1(x) = 
- 7
Mathematics
Identify the unknown amount as the percent, part, or whole.What number is 5.5% of 32?
A. percent B. whole C. part
Mathematics