What is sinb ?

enter your answer, as a simplified fraction

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

Plz ( true - false) all triangles have interior angles whose measure sum to 90.

Petes dog weighed 30 pounds it then lost 16% of it's weight how much did pete lose