A hot liquid of 80°c is added by 600g of the same liquid originally at 10°c. when the mixture reaches 30% the total mass of the mixture is?​

The answer to the first one is barometer.

Individual rights and freedoms protect every person in canada whether they're citizens or not. the only right, non-citizens don't have is the right to vote.

The first immigrants to settle in what is now the united states were the ancient ancestors of modern native americans. the precise routes of those first north american immigrants are disputed, but there is no uncertainty about the fact that every human being on the continent is either a recent immigrant or a descendant of earlier immigrants. since the first immigrants came here from asia more than thirteen thousand years ago, there have been four large and easily recognizable modern waves of immigrants into the united states.