Ummmmm is that the question or is there other numbers
Break the shape into 2 along the perforated line. now you have two rectangular prisms. find the volume of each and add them together to get your answer.
Rectangular prism: length*width*height
RP1) 10*8*14=1120
RP2) 10*10*8=800
total: 1920
The answer is x=-10 hugging high
65 x 4 = 260 cm was left after tying the parcel
260 + 45 = 305 cm was the total length