In 1976 the population density of a country was 55 people per square mile, and in 2001 it was 75 people per square mile. use a linear function to estimate when the population density reached 90 people per square mile. the population density will reach 90 people per square mile in the year nothing. (round to the nearest whole number as needed.)

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 (%).