Pearl wants to determined the average number of goals she scored her first five field hockey games of the seasons. she scored 2 goals in the first game, 3 goals in the second, and 5 goals in the third. she can't remember how many goals she scored in the fourth and fifth games but she does remember that she scored the same number of times in each of those games. if pearl scored 2 goals in each of fourth and fifth games, what was her average number os goals per game?