Answer:
19
Step-by-step explanation:
1-(-18)
=1+18
=19
=Mr.Lehmans hourly rate for labor is 20$
=30+40=70-50=20
$1.10 per pound for the 1-pound bag.
$0.96 per pound for the 2-pound bag.
$0.92 per pound for the 3-pound bag.
As the quantity of sugar increases, the unit cost decreases.
