100 pts. I will mark BRAINLIEST. Plz answer with explanation. Dev is designing a new sign for his art studio. However, he needs to make several improvements to the sign before it is ready to be hung.

a. Dev wants to add a metal trim around the perimeter of the sign. How much trim should Dev purchase? Round answer to the nearest foot.

b. The front of the sign also needs to waterproofed with a protective sealer. How much area needs to be covered by the sealer? Round answer to nearest square foot.

c. If a pint of sealer covers an area of 20 square feet, then how many pints of sealer should Dev purchase?