Perform the operations and simplify.
?
?
Assume that denominators are not 0.
?
A. ?
B. ?
C. ?
D. ?
Answer: D
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Determine the period and range for the function.y = 
sin x
A. period: ?; range: 
B. period: 2?; range: 
C. period: 2?; range: (-?, ?)
D. period: ?; range: 
Solve the problem.Determine the better buy.Option A: 12 oz for $3.60Option B: 16 oz for $4.96
A. Not enough information B. Equal value C. Option A D. Option B
Use the Urban Prices Index Table to answer the question. The table shows what $100 worth of an item costs today. 
*All figures are expressed as a percent of the base of 100 from two decades ago.Urban area: ChicagoWhat does $100 of Food and beverages cost today?
A. $219.20 B. $186.30 C. $202.30 D. $237.80
Decide whether or not the ordered pair is a solution of the system.(3, -1)y = 5 - 2x 4x = 10 - 2y
A. Yes B. No