HELP ME I NEED HELP WITH THIS MEAN AND MODE

Total number of home goals / Total number of home  games =  2.5

Total home goals = 9 + 6 + 8 + 7   =  30

Let the total number of home games = H

So    30/ H = 2.5      multiply both sides by H, divide both sides by 2.5

30 / 2.5 = H  =  12 home games

Similalrly.....THe total number of away games is 2 + 7 + 4 + 5   =  18

Let the away games = A

So we have that

18 / A  = 1.8

18 / 1.8 = A =  10 away games

So....total games =  12 + 10  =   22