How many dogs weigh at least 100 pounds? And how many dogs do weigh exactly 70 pounds unknown it could be anywhere between

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

How do i make someone brainliest? (if you answer me, i might be able to make you brainliest! )

What is the factor form of x^2-9x+14