Ronco Diabo

Can somebody tell me the prices of the printer ink cartridges? I don’t really need these but my brother asked me to find out how much they cost before he goes to the store. He is a very lazy person. I don’t know if we have something in commune. I am nice and smart and I do all the housework. He is just a freak who does nothing all day, except playing his drums. I can’t wait to leave for collage, next year.