Answer :
10lb times $7= $70
40lb times $4.50= $180
40lb plus 10lb= 50lb
$180 divided by 50lb= $3.6
$3.60 per pound of house blend
40lb times $4.50= $180
40lb plus 10lb= 50lb
$180 divided by 50lb= $3.6
$3.60 per pound of house blend