Provide an appropriate response.Find the difference:608- 349
A. 359
B. 361
C. 369
D. 259
Answer: D
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Solve the given inequality (a related function is graphed).
< 0 
A. [-4, 1] B. (-?, -4] ? [1, ?) C. (-4, 1) D. (-?, -4) ? (1, ?)
The augmented matrix is given for a system of equations. If the system is consistent, find the general solution. Otherwise state that there is no solution. 
A. x1 = -5x2 - 8x3 + x4 - 2x5 + 5
x2 is free
x3 is free
x4 = 
x5 - 1
x5 = -4
B. No solution
C. x1 = -5x2 - 8x3 + 9
x2 is free
x3 is free
x4 = -4
x5 = -4
D. x1 = -5x2 - 8x3 + 9
x2 is free
x3 = -4
x4 = 
x5 - 1
x5 = -4
Solve the problem.It costs $21 per hour plus a flat fee of $23 for a plumber to make a house call. After writing an equation for this situation, suppose the total cost to have a plumber come to a house is $191. How many hours did the plumber work?
A. 19 hr B. 20 hr C. 7 hr D. 8 hr
Find the relative extrema of the function, if they exist.f(x) = x2/5 - 1
A. Relative minimum at (0, -1); relative maximum at (1, 0) B. Relative minimum at (0, -1) C. No relative extrema exist D. Relative maximum at (0, -1)