Lisa planted flowers in a garden 5 yards long. then she planted flowers in another garden 7 yards long. what is the total length in feet of the gardens lisa planted?

I think its 35 yards in total because 7×4=35

First, we determine the volume of the prism by multiplying the area of the base by the height. 
                            Volume = (base area) x (height)
                            Volume = (3 m²)(4 m) = 12 m³
By "dilated" we mean to say that the dimensions of the prisms are enlarged by that factor. The cube of this dilation ratio is equal to the ratio of the volumes. If we let x be the volume of the new prism,
                         x/12 m³ = (3/2)³
The value of x from the equation is 40.5 m³.
Thus, the volume of the dilated prism is approximately 40.5 m³.