Solve the following system by any appropriate method. If there is no real number solution, so state.
- 
= 1x + y = 7
A. (2, 3), (-16, 25)
B. (3, 4), (-17, 24)
C. (3, 10), (-17, -10)
D. (2, 4), (-16, 24)
Answer: B
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Solve the problem.The mathematical model 
represents the cost in dollars a company has in manufacturing x items during a month. How many items were produced if costs reached $210,000?
A. 1200 items B. 209,800 items C. 900 items D. 750 items
Give the numerical coefficient of the term.2
A. 2 B. 0 C. -1 D. 1
Solve the problem.Midtown Delivery Service delivers packages which cost $1.40 per package to deliver. The fixed cost to run the delivery truck is $384 per day. If the company charges $5.40 per package, how many packages must be delivered daily to make a profit of $40?
A. 96 packages B. 56 packages C. 274 packages D. 106 packages
Solve the equation f(x) = 0 analytically and then use the graph of y = f(x) to solve the inequalities f(x) < 0 and 
f(x) = (2)3x - 8x + 2
A. {3}; (-?, 3); [3, ?) B. ?; (-?, ?); ? C. ?; ?; (-?, ?) D. {3}; [3, ?); (-?, 3)