Answer:
C.
![p>72](https://img.qammunity.org/2021/formulas/mathematics/college/1yh7n8ikj7dlpdc4vfzjvkpdn0yq1mzt0k.png)
Explanation:
We have been given that Ayumi averages 1.5 times par strokes per game, so her strokes on 'p' par would be
.
Since Ayumi adds 18 strokes to her total when she plays against Daiki, so her total strokes would be
.
We are also told that Daiki averages 1.75 times par strokes per game, so Daiki's strokes would be
.
Ayumi's strokes need to be less than her brothers for her to win,so we can represent this information in an equation as:
![1.5p+18<1.75p](https://img.qammunity.org/2021/formulas/mathematics/college/lleu1ujhjapvqee669g8i66t08psbnbpky.png)
Let us solve for p.
![1.5p-1.5p+18<1.75p-1.5p](https://img.qammunity.org/2021/formulas/mathematics/college/5latwptt24uzpybwslyqumipmuqvtq7hrm.png)
![18<0.25p](https://img.qammunity.org/2021/formulas/mathematics/college/kghzoyjc04wrsrhwkqv6if1a9betgtvj6r.png)
![0.25p>18](https://img.qammunity.org/2021/formulas/mathematics/college/uejarmti4gs9bb9s0ulf7e1ad1blwmxh1c.png)
![(0.25p)/(0.25)>(18)/(0.25)](https://img.qammunity.org/2021/formulas/mathematics/college/6xfwjhcmbupideghfgqfcg32epvkceegmq.png)
![p>72](https://img.qammunity.org/2021/formulas/mathematics/college/1yh7n8ikj7dlpdc4vfzjvkpdn0yq1mzt0k.png)
Therefore, the inequality
represents the par, p, in a golf-game where Ayumi beats her brother Daiki and option C is the correct choice.