In 1940, a certain country's population was 79,042,573 and its area was 2,919,166 square miles. In 2000, the country's population was 283,891,555 and its area was 3,678,844 square miles. Compute the population densities of both years.

One integer is 8 times another. if the product is 72, then find the integers

Acompany manufactures large valves, packed in boxes. a shipment consists of 1500 valves packed in 75 boxes. each box has the outer dimensions 1.2 x 0.8 x 1.6 m and the inner dimensions 1.19 x 0.79 x 1.59 m. the boxes are loaded on a vehicle (truck + trailer). the available capacity in the vehicle combination is 140 m3. each valve has a volume of 0.06 m3. - calculate the load factor on the box level (%). - calculate the load factor on the vehicle level (%). - calculate the overall load factor (%).

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