Find the coordinates of the y-intercept and the x-intercept, in that order.3x + y = -9
A. (0, -4) (0, 3)
B. (-3, 0) (0, -9)
C. (-9, 3) (-4, -9)
D. (-4, 0) (3, 0)
Answer: B
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Find the difference. Simplify the result.
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A. 
B. 
C. 
D. 
Solve the problem.In flying the 84 miles from Champaign to Peoria, a student pilot sets a heading that is 11° off course and maintains an average speed of 120 miles per hour. After 15 minutes, the instructor notices the course error and tells the student to correct his heading. Through what angle will the plane move to correct the heading and how many miles away is Peoria when the plane turns?
A. 163°; 54.85 mi B. 17°; 74.04 mi C. 17°; 54.85 mi D. 163°; 74.04 mi
Find the domain of the rational expression.
A. {x|x is a real number and x ? 7} B. {x|x is a real number} C. {x|x is a real number and x ? 3} D. {x|x is a real number and x ? 3 and x ? 7}
Find the consumer surplus and producer surplus.
?
Demand 
?
Supply 
?
A. Consumer surplus: $3,750Producer surplus: $12,800 B. Consumer surplus: $3,750 Producer surplus: $12,500 C. Consumer surplus: $3,750 Producer surplus: $12,600 D. Consumer surplus: $3,750 Producer surplus: $12,900 E. Consumer surplus: $3,750 Producer surplus: $12,700