Solve the problem.The revenue achieved by selling x graphing calculators is figured to be 
dollars. The cost of each calculator is 
How many graphing calculators must be sold to make a profit (revenue - cost) of at least $283.50?
A. between 27 and 33 calculators
B. between 23 and 25 calculators
C. between 21 and 27 calculators
D. between 22 and 26 calculators
Answer: C
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Find the absolute maxima and minima of the function on the given domain.
on the closed triangular region with vertices 
and 
A. Absolute maximum: 2 at 
absolute minimum: 0 at 
B. Absolute maximum: 12 at 
absolute minimum: 2 at 
C. Absolute maximum: 10 at 
absolute minimum: 0 at 
D. Absolute maximum: 10 at 
absolute minimum: 2 at 
Provide an appropriate response.Which of the following integrals, if any, calculates the area of the shaded region?
A. 
dx
B. 
dx
C. 
dx
D. 
dx
Find the missing number. Round to the nearest hundredth if necessary.13? = 19
A. 1.38 B. 1.15 C. 1.46 D. 0.87
Locate any intercepts of the function.
A. (0, 5), (
, 0), (
, 0)
B. (0, 5)
C. (0, -4), (
, 0), (
, 0)
D. (0, -4)