Please help me fast ?
i only have 10 min left ): .

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

Which of the following constants can be added to x2 - 3x to form a perfect square trinomial?

The amount of data left on the cell phone six gb for 81.5 gb of data is used how much data is available at the beginning of the cycle