Are 12 year old boys better than 12 year old girls or is it 12 year old girls better than 12 year old boys :) I need your votes!

How can you decide witch operations to use to slice a two step equation

Gabriel determined that his total cost would be represented by 2.5x + 2y – 2. his sister states that the expression should be x + x + 0.5x + y + y – 2. who is correct? explain.

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.