Answer:
He can buy 3.38 pounds of nails and stay under 12 dollars.
Explanation:
We need to write an inequality to solve this problem
total amount >= cost per pound of nails * pounds of nails
The total amount is 12 and the cost per pound of nails is 3.55
Let p = number of pounds of nails
12>= 3.55 * p
Divide each side by 3.55
12/3.55 >=3.55p/3.55
3.38028169 >=p
We round to the nearest hundredth
He can buy 3.38 pounds of nails and stay under 12 dollars.