Can u help me with this. and can u plz also give me the angle measurements

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

One line passes through (-7,-4) and (5,4) . another line passes through the point (-4,6) and (6,-9)

Y+ 2/y is it a polynomial in one variable or not? and if so, why?