Solve the problem.A real estate agent agrees to sell an office building according to the following commission schedule: $38,000 plus 20% of the selling price in excess of $800,000. Assuming that the office building will sell at some price between $800,000 and $1,000,000, inclusive, over what range does the agent's commission vary?
A. The commission will vary between $38,000 and $228,000, inclusive.
B. The commission will vary between $39,000 and$78,000, inclusive.
C. The commission will vary between $38,000 and $78,000, inclusive.
D. The commission will vary between $198,000 and $238,000, inclusive.
Answer: C
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For the given expression y', find y'' and sketch the general shape of the graph of y = f(x). y' = 
- 4
A. 
B. 
C. 
D. 
Identify the function's extreme values in the given domain, and say where they are assumed. Tell which of the extreme values, if any, are absolute.g(t) = 
- 3.5t2 + 10t, 0 ? t < ?
A. Local minimum: 
; Local maximum: 
; Absolute minimum: 
B. Local minima: (0, 0) and 
; Local maximum: 
; Absolute minimum: 
C. Local minimum: 
; Local maximum: 
; Absolute maximum: 
D. Local minimum: 
; Local maxima: (0, 0) and 
; Absolute maximum: 
Find the sum or difference. Write the answer in lowest terms.
- 
A. -10
B. - 
C. 
D. - 
Write the linear system corresponding to the reduced augmented matrix.
A. x1 = -4, x2 = t + 6, x3 = t for any real number t B. No Solution C. x1 = 4, x2 = -t + 6, x3 = t for any real number t D. x1 = 4, x2 = t + 6, x3 = 0