Graph the system of inequalities.y ? x + 1y ? x + 72 ? x ? 9
A. 
B. 
C. 
D. 
Answer: B
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Solve the problem.Prove that 
dt = 
dt + 
dt
What will be an ideal response?
Solve the given equation for the indicated variable.S = 2?rh + 2?r2 for h
A. h = 
- 1
B. h = 2?(S - r)
C. h = 
D. h = S - r
Simplify.
A. 
B. 
C. 
D. 
Solve the problem.The cost in producing a shipment of widgets that you supply to various regional businesses consists of a setup expense of $20 plus $0.24 per widget. Let C be the total cost of producing a shipment, and let x represent the number of widgets in a shipment. Write in symbolic form an equation that will relate C and x. Generate five data points from this equation using equally incremented x values ranging from 100 to 500, and use this data to plot a graph. How many widgets can you include in a shipment if you don't want to spend more than $104.00 making them?
A. C = 0.24x; 20 widgets can be
included in the shipment.
B. C = 20 + 0.24x; 20 widgets can be
included in the shipment.
C. C = 20 + 0.24x; 300 widgets can be
included in the shipment.
D. C = 20 + 0.24x; 350 widgets can be
included in the shipment.