Juan Guillermo Cuadrado tiene en la actualidad 23 años, 8 meses y 5 días. ¿Cuántos segundos
ha vivido Cuadrado hasta el momento?
a) 746.496.000 sg.
b) 94.608.000 sg
c) 3.110.400 sg.
d) 26.280 sg
tiene que ser con procedimiento q​

How is coal extracted from mountaintop removal mines? a. dynamite is used to create underground tunnels where miners go to extract the coal. b. dynamite is used to break apart rocks and then draglines are used to remove the broken rock and reach the coal. c. coal in mountaintops is extracted by digging strips in the landscape to reach the coal. d. placer deposits in mountain river bottoms are removed by

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Two pans of a balance are 24.1 cm apart. the fulcrum of the balance has been shifted 1.33 cm away from the center by a dishonest shopkeeper. by what percentage is the true weight of the goods being marked up by the shopkeeper? assume the balance has negligible mass. answer in units of %.