Oranges cost 15p each. Raj has a £1 coin. What is the greatest number of oranges Raj can buy with £1? I already know the answer; I just need confirmation.

3. solve the given inequality and graph the solution on a number line.

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 you determine if an ordered pair is a solution to a given equation?