In other words, if we double our concentration of methyl acetate while keeping this guy the same, we double our rate of reaction. Likewise, if we double this guy while keeping our methyl acetate the same, we also double our reaction rate. But if we double each guy, if this guy is multiplied by two and this guy is multiplied by two, that means this guy is quadrupled. He's multiplied by four. So now I have this. I have this and I know my rate of reaction, but I don't know my rate constant.