Solve the problem.A store manager paid $64 for an item and set the selling price at $86.40. What was the percent markup?
A. 25%
B. 36%
C. 33%
D. 35%
Answer: D
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The graph below is one complete cycle of the graph of an equation containing a trigonometric function. Find an equation to match the graph. If you are using a graphing calculator, graph your equation to verify that it is correct.
?
What will be an ideal response?
Determine if the function is increasing or decreasing over the interval indicated.f(x) = 
; (-?, 0)
A. Increasing B. Decreasing
Find the term that should be added to the expression to form a perfect square trinomial. Write the resulting perfect square trinomial in factored form.x2 + 9x
A. 
; 
2
B. 0; 
2
C. 
; 
2
D. 0; (x + 9)2
Solve the problem.Find the equation of a circle in standard form where C(6, -2) and D(-4, 4) are endpoints of a diameter.
A. (x - 1)2 + (y - 1)2 = 34 B. (x + 1)2 + (y + 1)2 = 34 C. (x + 1)2 + (y + 1)2 = 136 D. (x - 1)2 + (y - 1)2 = 136