Solve. If necessary, round percents to the nearest tenth, dollar amounts to the nearest cent, and all other numbers to the nearest whole.A $220.00 dress is on sale for 40% off. Find the discount and the sale price.
A. discount: $8.80; sale price: $2112.00
B. discount: $88.00; sale price: $2112.00
C. discount: $8.80; sale price: $132.00
D. discount: $88.00; sale price: $132.00
Answer: D
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Find the vertex, the y-intercept, and the x-intercepts (if any exist), and graph the function.f(x) = -x2 - 2x + 8
A. 
Vertex (- 1, - 9);
x-int = (-4,0) and (2, 0);
y-int = (0, 8)
B. 
Vertex (- 1, 9);
x-int = (-2,0) and (4, 0);
y-int = (0, 8)
C. 
Vertex (1, 9);
x-int = (-2,0) and (4, 0);
y-int = (0, 8)
D. 
Vertex (- 1, 9);
x-int = (-4,0) and (2, 0);
y-int = (0, 8)
Use the graph to solve the problem. The graph shows the relationship between the area A of a rectangle and the length L, if the width is fixed. Find the area if the length is 19 cm.
A. 176 cm2 B. 231 cm2 C. 187 cm2 D. 209 cm2
Assume the functions are one-to-one. Find the requested inverse.If f(6) = 3, find f-1(3)
A. 6 B. 1 C. 8 D. 3
what is the corner point?
In the graph of 
A) (-2, -3)
B) (-3, 2)
C) (3, -2)
D) (-3, -2)
E) (-2, 3)