Multiply and simplify.
? 
A. - 
B. 
C. 
D. -12
Answer: A
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Solve for the specified variable.5x + 
= 
for z
A. z = 
B. z = 
C. z = 
D. z = 
Provide an appropriate response.Which of the following statements defines 
f(x) = -??I. For every negative real number B there exists a corresponding ? > 0 such that f(x) < B whenever x0 - ? < x < x0 + ?.II. For every negative real number B there exists a corresponding ? > 0 such that f(x) < B whenever x0 < x < x0 + ?.III. For every negative real number B there exists a corresponding ? > 0 such that f(x) < B whenever x0 - ? < x < x0.
A. I B. III C. II D. None
Solve the problem. Round dollar amounts to the nearest cent. Use ordinary interest unless otherwise indicated.On October 12, Marge Smith paid a state income tax payment, which was due on June 30. The penalty was 10% simple interest on her unpaid tax of $641. Find the penalty using exact interest.
A. $17.91 B. $18.52 C. $18.26 D. $18.44
The ? shape in the figure below is shown using 9 pixels in a 3 × 3 grid. The color levels are given to the right of the figure. Use the matrix 
that represents a digital photograph of the ? shape to solve the problem.
Adjust the contrast by leaving the black alone and changing the light grey to dark grey. Use matrix addition to accomplish this.
A. 
+ 
= 
B. 
+ 
= 
C. 
+ 
= 
D. 
+ 
= 