Question 923623
If you got three times as much candy, you would have gotten:
{{{ 3*( 2/3 ) = 6/3 }}}
{{{ 6/3 = 2 }}} pounds 
That would have cost you 3 times as much, or:
{{{ 3*.64 = 1.92 }}}
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This is the cost for 2 pounds, so 1 pound costs:
{{{ 1.92/2 = .96 }}}
96 cents
And a half pound costs {{{ .96/2 = .48 }}}
48 cents
So, 1 and 1/2 pounds costs:
{{{ .96 + .48 = 1.44 }}}
$1.44
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Here's a rough calculator check:
{{{ .64 / .6667 = 1.44 / 1.5 }}}
{{{ .95995 = .96 }}}
close enough
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hope this helps