Answer:
$240
Explanation:
Now we have to,
→ find the cost of molding.
Formula we use,
→ P = 2 × (l + w)
Now the perimeter will be,
→ 2 × (l + w)
→ 2 × (15 + 15)
→ 2 × 30
→ 60 feet
Then the required cost is,
→ P × $4
→ 60 × 4
→ $240
Hence, molding costs $240.