Could someone help me on these questions i have for my quiz?

Can someone answer it, and plot it, for 20 points and brainliest answer? p. s. they're the same ! : )

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

Tom drove 206 miles in 3.9 hours. estimate his average speed.