Answer:
One pound of peanuts costs 1 dollar and 50 cents.
Ten pound of peanuts costs 15 dollars.
Explanation:
1. If 8 pounds of peanuts cost $12 how much does 1 pound of peanuts cost?
One pound of peanuts costs 8 times less:
$12 : 8 = $1.5 = 1 dollar and 50 cents
2. Use the answer to find how much 10 pounds cost:
Ten pounds of peanuts will cost 10 times more than one pound:
$1.5 x 10 = $15