If two similar triangular prisms have volumes of 512 ft3 and 1331 ft3 find the scale factor

So in your question where as two similar triangular prism have a volume of 512ft3 and 1331ft3, the scale factor of the both triangular prisms is 8:11. I hope you are satisfied with my answer and feel free so ask for more, if you have more questions and clarifications 

1. 0.3 •4 is the same as 4 groups of 0.32. 7•0.8 is the same as 7 groups of 0.83. it increases by 0.5 every time, so 0.5x4 it increases by 0.9 every time, so 0.9x5. 0.9•12=10.86. 0.47•5=2.35i can finish the next ones in a separate post