Clear fractions then solve by substitution.3x + 
y = 244x - 2y = 8
A. ?
B. {(7, 7)}
C. {(-6, 7)}
D. {(6, 8)}
Answer: D
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Find the perimeter.
A. 65 yd B. 44 yd C. 242 yd D. 66 yd
Provide an appropriate response.True or false? Consider the double integral
The first step in calculating this integral involves holding x constant.
A. True B. False
Solve the problem.The graph below shows the number of tuberculosis deaths in the United States from 1989 to 1998. 
Estimate the average rate of change in tuberculosis deaths from 1993 to 1995.
A. About -80 deaths per year B. About -300 deaths per year C. About -150 deaths per year D. About -01 deaths per year
Dell's business model was based on a/an ____ innovation because it changed the means of selling personal computers from store-front retailers to selling directly to customers using the Internet.
A. mechanistic B. external C. administrative D. process