John's expenses are greater than his income. last month he spent $80.00 at the bookstore. which is the best action for john to take to eliminate that expense? a) read more online. b) sell his used books. c) use the local library. d) borrow books from his friends.

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