Can you pls help I will make your brainliest.

One card is dealt from a 52 card deck. find the probability that the dealt card is a 4 or a black 7

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

2y= 3 2 x−2 y = − 1 3 x + 1 y=− 3 1 x+1