What do the y-intercept and the slope mean in the context of the example proplem

Haruka hiked several kilometers in the morning. she hiked only 66 kilometers in the afternoon, which was 25% less than she had hiked in the morning. how many kilometers did haruka hike in all?

Steve had 48 chocolates but he decided to give 8 chocolats to each of his f coworkers. how many chocolates does steve have left

Paul can type 60 words per minute and jennifer can type 80 words per minutes. how does paul's typing speed compare to jennifer's