Choose the situation in which the use of approximate numbers is appropriate. a) the cost of tickets to a concert b) an inventory of automobiles at a dealership c) the population of the united states based on a census d) the number of buses needed to transport the band to an out of town game

C would be the appropriate answer.

In all of the other choices, the exact number is important. For example, if the number of buses was just 1 short, a whole bus load of people would get left behind.

Since it is almost impossible to keep track of the entire US population at any given point and some people might not have done the census, C is the answer.

Hope this helps!