can anyone help me with part A I dont understand it at all. there is 6 different answers that I have to type in ​

A80-foot piece of siding is cut into three pieces so that the second piece is four times four times as long as the first piece and the third piece is five times as long as the first piece. if x represents the length of the first piece, find the lengths of all three pieces.

Emily convinced her mom to buy a giant box of her favorite cereal. her mom doesn't think the box will fit on their shelf. the volume of the box is 1000 cm^3 . the base of the box is 25 cm by 10 cm

How much higher is checkpoint 4 than checkpoint 2 if checkpoint 4 is -143 and checkpoint 2 is -182