PLEASE HELP THIS IS DUE IN A SOON PLEASE I WILL MARK YOU BRAINLIEST!! Please help me:( Find the indicated values.
I need help on number 1, 3 on the bottom, 4 and 5

This is fractions casey shared a pizza with some friends. they each ate 1 third of the pizza. how many people shared the pizza

What is the fewest number of full weeks briyana would have to work to have enough money? 8 weeks9 weeks 10 weeks11 weeks

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