Solve the problem.Julian's grocery bill was $9.43. He gave the clerk a $20 bill. How much change should he receive?
A. $10.57
B. $9.43
C. $10.56
D. $9.57
Answer: A
Mathematics
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Place the correct symbol, <, >, or =, in the blank between the expressions.-|-29| 
-29
A. < B. = C. >
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Solve the system for x and y using Cramer's rule. Assume a and b are nonzero constants.x + ay = 
x + by = 
A. 
B. 
C. 
D. 
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Determine whether y ? ? or y ? -? as x ? -? and x ? ?.y = 7x2 - 2x3 + 3x + 5
A. y ? ? as x ? -?; y ? ? as x ? ? B. y ? -? as x ? -?; y ? -? as x ? ? C. y ? -? as x ? -?; y ? ? as x ? ? D. y ? ? as x ? -?; y ? -? as x ? ?
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Write the first four terms of the sequence.an = 
A. a1 = 1, a2 = 
, a3 = 
, a4 = 
B. a1 = 
, a2 = 
, a3 = 
, a4 = 
C. a1 = 
, a2 = 
, a3 = 
, a4 = 
D. a1 = 
, a2 = 
, a3 = 
, a4 = 
Mathematics