If xy=yz then y is the midpoint of xz. find a counter example

Colby and jaquan are growing bacteria in an experiment in a laboratory. colby starts with 50 bacteria in his culture and the number of bacteria doubles every 2 hours. jaquan starts with 80 of a different type of bacteria that doubles every 3 hours. let x equal number of days. colbys experiment follows the model: a.) y=50*2^x b.) y=50*2^8x c.) y=50*2^12x jaquans experiment follows the model: a.)80*2^x b.)80*2^8x c.)80*2^12x

F(x) = 1/x g(x)=x-4 can you evaluate (g*f)(0) ? why or why not?

The function below show how much jayna and hannah charge for babysitting. which statement best compares the two plants?