The building at much music on the corner of queen st. and john st. in toronto is square and has a perimeter of 420 feet. what is the length of each side of the building?

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

The radius of a sphere is 3 inches. which represents the volume of the sphere?

What is the answer to this equation? and if you can, find a way to show your work.