Belle operates a
lemonade stand during
the summer. It costs her
$0.18 to make each cup.
She sells each cup for
$0.75. Which expression
could be used to
calculate the amount of
profits she earns from
selling "on" cups?

0.18n-0.75n

0.75n-0.18n

0.75n+0.18n

0.18n-0.75n
PLEASE HELP ME FAST!