Jack plays a lot of sports, but he had some difficulty reacting to what he sees and hears at the same time. which skill should he work on to overcome this challenge

The skills he need is to practice seeing and hearing

In what ways did the Romans limit the political power of any one man? What they did was the consul could veto, or reject, the actions of the other consul. How did Roman political structures limit the influence of the poor? It limited the influence of the poor by not letting the plebeians join the Roman Senate.