Megan’s cousin wants to buy a new sound system for his car. she goes to the electronics store to him to pick it out. the base system costs $395. adding a subwoofer is an additional $89. two extra rear speakers are $75 each. and upgrading to a six-cd disk changer is an additional $225. round each amount to the nearest hundred dollars to find a reasonable estimate for the total cost of the new sound system.
a. $600
b. $650
c. $700
d. $900

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 (%).