The businessman who ran the ad shown in the illustration below earns $100,000 and employs four students who earn $17,500 each. Is the ad honest?
?
?
A. no
B. yes
Answer: A
Mathematics
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Solve the problem.A circle of radius r is inscribed in a square with sides 2r as shown in the figure. Express the shaded area in terms of r and ? as a completely factored polynomial.
A. 
(4 - r)
B. 
(2 + ?)(2 - ?)
C. 
(2-?)2
D. 
(4 - ?)
Mathematics
Provide an appropriate response.Fill in the blank to complete the statement. In order for a matrix to have a determinant, it must be a(n) 
matrix.
A. rectangular B. minor C. square D. augmented
Mathematics
Solve the system for x and y using Cramer's rule. Assume a and b are nonzero constants.x + ay = 
x + by = 
A. 
B. 
C. 
D. 
Mathematics
Multiply.(23)(72)
A. 1666 B. 1656 C. 1756 D. 1646
Mathematics