Number 28 is 134.4
and number 29 is 27
Just plug in the number into the formula given V=lwh. Now the question is asking V=(7)(4)(4.8) now solve for V and you get 134.4.
For 29 it says you have a cube meaning all of the sides are the same length. In this case they all equal 3, so your equation must be V=(3)(3)(3). Now solve and the answer is 27.
