Write the whole number in word form.64,568,009
A. Sixty-four million, five hundred sixty-eight thousand, nine
B. Sixty million, forty-five thousand, sixty-eight hundred and nine
C. Sixty-million, five thousand sixty-eight hundred, nine
D. Sixty-four million, five hundred thousand, sixty-eight hundred, nine
Answer: A
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Solve the problem.If u = 
, v = 
, and w = 
, evaluate u ? v + u ? w.
A. 151 B. 159 C. 141 D. 132
Find the vertex, focus, and directrix of the parabola. Graph the equation.y2 = -16x
A. vertex: (0, 0)
focus: (0, -4)
directrix: y = 4
B. vertex: (0, 0)
focus: (-4, 0)
directrix: x = 4
C. vertex: (0, 0)
focus: (4, 0)
directrix: x = -4
D. vertex: (0, 0)
focus: (0, -4)
directrix: y = 4
Find the mean for the list of numbers. Round to the nearest tenth.50, 57, 87, 32, 127, 72
A. 85.0 B. 70.8 C. 70.3 D. 71.3
Provide an appropriate response.Whenever solving a(n) 
with a variable denominator, you must check the value(s) obtained in the original equation.
A. rational equation B. extraneous solution C. complex fraction D. proportion