Find the amount of the sale before sales tax was added. Round to the nearest cent.Total Sale: $536.81Sales Tax Rate: 4%
A. $516.16
B. $383.44
C. $521.17
D. $511.25
Answer: A
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Identify the critical points. Then use the test of your choice to decide which critical points give a local maximum value and which give a local minimum value. Give these values.f(?) = cos 2?, 0 < ? < 
A. Critical point: 
; local maximum f
= 
B. Critical point: 0; local minimum f(0) = -1
C. No critical points; no local maxima or minima on the interval 
D. Critical points: 0, 
; local maximum f(0) = 1; local minimum f
= 0
Provide an appropriate response. Find the x- and y-intercepts for the quadratic equation y = x2 + 6x + 8.
A. x-intercepts -2 and -4; y-intercept -8 B. x-intercepts -2 and -4; y-intercept 8 C. x-intercept 6; y-intercept 8 D. x-intercepts 2 and 4; y-intercept 8
Find the midpoint of the segment with the given endpoints.(-0.5, 3.9) and (-1.9, -7.6)
A. 
B. 
C. 
D. 
Graph the fraction or mixed number on a number line.
A. 
B. 
C. 
D. 