Use the rule of 3 simple
x mean 100%
3 mean 15%
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x = 3*100/15 = 300/15 = 20
hope this will help you
Answer:
Look if it has 1 regtangle as the base and 4 triangles it is a rectangular pyramid.
If it has 2 circles as the base and a long tube it is a cylinder.
If it has 2 triangles and 3 rectangles it is a triangular prism
Lastly if it 6 sides of rectangles and squares it is a rectangular prism
Study. also, i would leave the answer there, but it says i need 20 words to answer so thats why i included this extra bit, but yeah just study.
The answer is obviously not A and B so that leaves us with only C or D and the one that id the best choice would have to be C because it gives good information about how it is used and where it would be installed
Hope this helped : )