Robert needs to cut for shelves from a board that is 2.5 m long. the second shelf is 18 cm longer than twice the length of the first shelf. the third shelf is 12 cm shorter than the first shelf. the remaining shelf is 4 cm longer than the first shelf. if Robert must use the entire 2.5 m board for the shelves what is the length of the second shelf in centimeters

Answer 1

done. see related questions below