The slope of the line is 1/3
They won 20/30, so 100 / 30 = 3.3, then times by 20 = 66.66.
Hope this helps.
$1 = 3.70 rand
$450 is the same as 450 * $1, so multiply both sides of the conversion equation above by 450.
450 * $1 = 450 * 3.70 rand
$450 = 1665 rand
