In a candy bar, 108 calories are form sugar. there are 240 calories in the candy bar. what percent of the calories are from sugar?

If anyone has done the algebra 2 chaos theory portfolio would you be wiling to me? i kind of know what i'm doing i just don't know if i'm doing it right.

Out of 50 students surveyed, 16 have a dog. based on these results, predict how many of the 280 students in the school have a dog.

An ant travels at a constant rate of 30cm every 2 minutes. at what speed does the ant travel per minute