Respuesta :

The  formula for the total surface area of a right prism is T. S. A. =ph+2B where p represents the perimeter of the base, h the height of the prism and B the area of the base, I hope this helps.

God bless :)

Answer:

105

Step-by-step explanation:

7×5×3=105 5×3=15. 15×7=105