we know that
[volume of hexagonal prism]=[area of base]*[height]
[height]=[volume of hexagonal prism]/[area of base]
Volume=160 m³
Area=64 m²
[height]=[160]/[64]=2.5 m
[surface area of hexagonal prism]=[perimeter of base]*[height]+2*[area of base]
perimeter=30 m
height=2.5 m
Area=64 m²
[surface area of hexagonal prism]=[30]*[2.5]+2*64=135.5 m²
the answer is
the surface area, of the hexagonal prism is 135.5 m²