999 pencils cost \$7.74$7.74dollar sign, 7, point, 74. Which equation would help determine the cost of 666 pencils?
Choose 1
Choose 1

(Choice A)
A
\dfrac{6}{x} = \dfrac{9}{\$7.74}
x
6

=
$7.74
9

start fraction, 6, divided by, x, end fraction, equals, start fraction, 9, divided by, dollar sign, 7, point, 74, end fraction

(Choice B)
B
\dfrac{x}{6} = \dfrac{9}{\$7.74}
6
x

=
$7.74
9

start fraction, x, divided by, 6, end fraction, equals, start fraction, 9, divided by, dollar sign, 7, point, 74, end fraction

(Choice C)
C
\dfrac{9}{6} = \dfrac{x}{\$7.74}
6
9

=
$7.74
x

start fraction, 9, divided by, 6, end fraction, equals, start fraction, x, divided by, dollar sign, 7, point, 74, end fraction

(Choice D)
D
\dfrac{6}{x} = \dfrac{\$7.74}{9}
x
6

=
9
$7.74

start fraction, 6, divided by, x, end fraction, equals, start fraction, dollar sign, 7, point, 74, divided by, 9, end fraction

(Choice E)
E
None of the above