That look like an obvious decreasing trend. From the first and last point we get a slope of (9-31)/(92-26) = -1/3 and a y intercept of 31 - (-1/3)26 = 39.67.
An example of a one step equation would be 5+5=10 But equations with more than one step would be like: find the sum of 5+5 and then find 50% of the sum of 5+5
The total number of Games.....TNG=24 Sports Related Games...............SRG=06 Role Playing Games.....................RPG=18 (24-6)
The ratio of Role Playing Games to Total Number of Games=RPG:TNG 18:24 3:4 is the answer. A ratio is actually a concept related to Division. Here in 18:24 you can divide both sides by 6 to reach the answer 3:4.