A tree casts a shadow of 30m. At the same time, a 40 m pole casts a shadow of 60m. Find the height of tree?

on monday rodney ate 1/4th of the sandwich = 3/12

on tuesday he ate 1/3rd of the sandwich = 4/12

therefore in total he has eaten = 3/12 + 4/12 = 7/12

thus we can say that he has eaten 7/12 of the sandwich on monday and tuesday alltogether.

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the answer is 5/14.

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the answer to your question is c.)   volcanoes built the mountains and earthquakes tore them down.

step-by-step explanation: