Find the density of a rectangular prism on earth that weighs 12,358g has a height of 35cm, a base side length of 4cm and a second base side length of 8cm

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Most likely a is the answer - because  you generate   38 atp's but also consume an atp.   each atp gives approx. less than 4 kcal so probably a is the closest answer.

The density of water is 1 g/cm cubed and in order for the pebble to sink its density has to be greater than the density of water and in order for the twig to float its density has to be less than the density of water