If they won 55 of the games, that means they lost the rest of the 75. So,
75 - 55 = 20 games lost. To find the percentage of 20 out of 75, you set up a proportion:

where x = the percentage of games lost. Cross multiply and divide to isolate the x:

Rounded to the nearest hundredth, the Royals lost 26.667 % of their games.
The correct graph would be graph A.
Since the line hits the y-axis at -1. And it goes down 2 and to the left 3 for each point.
The shape of the room is not a square.
Pythagorean Theorem: 17^2+17^2= 578, square root 578 and you'll get 24.04.
The length of the diagonal of the floor of the room in the plan should have been 24.04 in order to be a square.