Answer:
To find out how many points Nicky needs to score in her next game, we can use the formula for the mean (also known as the average) of a set of numbers:
mean = (sum of all numbers) / (number of numbers)
We know that Nicky has played three games and scored, and points in them. So the sum of all her points is:
sum=18+22+28
sum=68
We also know that Nicky wants to have a mean of 25 points per game, and she has played three games already. If we add the score from her next game to the sum, we will have the total number of points she has scored in four games.