If the circle shown is rotated and traced 360° along the dotted path, the resulting three-dimensional figure would look like a picture of a
A)
soda can.
B)
doughnut.
c)
megaphone.
D)
basketball

it's

let x and 400 - x be the two numbers.  

==> 0.80x + 0.85(400 - x) = 400 - 68 from the statement of the problem.  

< ==> 0.80x + 0.85(400 - x) = 400 - 68  

==> 340 - 0.05x = 332  

< ==> -0.05x = -8 ==> x = 160, the first number ==> 400 - x = 240, the second number.

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