Jon's weight loss for each week of the month is 4 lbs, 3.5 lbs, and 2 lbs. he gained 4.5 lbs, the last week. if jon originally weighed 153 lbs., how much does he weigh now?

Mrs. morton has a special reward system for her class. when all her students behave well, she rewards them by putting 3 marbles into a marble jar. when the jar has 100 or more marbles, the students have a party. right now, the the jar has 24 marbles. how could mrs. morton reward the class in order for the students to have a party?

What is the solution of the equation? 35√(x+2)3+3=27

Why is causation so much more difficult to prove than correlation?