How many cups are needed for a stack of 50 cm

News cameras take an overhead picture of a crowd at an outdoor event journalist then count the total number of people in the picture and use the sample of estimate the total number of people in the crowd this process is an example of

This question awards 100 ! i really don’t want to fail i will also mark you !

Identify the initial amount a and the growth factor b in the exponential function. a(x)=680*4.3^x