Please help me asap please ill give braiilist but only if you answer the question right

17 in long 1.3 ft wide and 8in high what is the volume

Ithink i know it but i want to be sure so can you me out ?

Adolphin is swimming with her friend. the dolphin jumps to a height of 4.54.54, point, 5 meters above the surface of the water as her friend swims 9.89.89, point, 8 meters directly below her. what is the position of the dolphin's friend relative to the surface of the water? meters