'If pies are $4 each, the fourth one is half price & a customer buys 4, this is her change from a $20 bill'
$6
LET'S BE LOGICAL: If pies are $4 each, the fourth one is half price & a customer buys 4, this is her change from a $20 bill
If pies are $4 each, the fourth one is half price & a customer buys 4, this is her change from a $20 bill
If pies are $4 each, the fourth one is half price & a customer buys 4, this is her change from a $20 bill
LET'S BE LOGICAL
$6
LET'S BE LOGICAL