You start a business making painted flower containers. you spend 300$ on paint and 5$ on each container. you charge 20$ for each container. how many containers do you have to sell to break even?

He mass of a single atom of carbon can be found by dividing the atomic mass (12.01 g) by 6.022 x 10^23. which is the mass of a single carbon atom, correctly written in scientific notation with the correct number of significant figures?