In 2013, the average time men in the united states could run a marathon was about four hours and 16 minutes. if a marathon is 26.2 miles, what was the average speed?

in the same year, the average finishing time for u. s. women was four hours and 41 minutes. what was the average speed in miles per hour?

[ answer ]

foliated

[ explanation ]

foliation forms in a rock when pressure squeezes the rock together. the rock then has a design of many different color little lines. there are three types of foliated rock. the types are slate, schist, and gneiss. each type of foliated rock is different based on grain size and foliation characteristics. the lines appear when the rock has been under pressure.

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one centimetre is equal to 0.01 metres