The length of a rectangular farm is 24 greater than twice the width if the perimeter is 210 then what is the length?

I had a whole cake If I gave 1/3 to my mom and 2/3 of the remainder to my friend then what portion of the cake is left?

Luis, Jane, Cathy sole lemonade together.If Luis got 1/3, then Jane got 1/3 of the remainder, and Cathy got 1/3 of the remainder and $6 was left then how much was their income?