Plz help i have no clue what to do and i need to pass

Steve had 48 chocolates but decided to give 8 chocolates to each of his ff coworkers. how many chocolates does steve have left? write your answer as an expression.

Which expression can be used to determine the slope of the line that passes through the points -6, three and one, -9

X/y + 4y/x divided by x/y - 2y/x explain as in depth as you can how you simplfied the fractions. i don't know where to start on this : /