HELP ME with this due tomorrow midnight

  best answer for the question.1.     divide  7/24  by  35/48  and reduce the quotient to the lowest fraction. 

The weights of players in a basketball league are distributed normally. the distance (d) of each player's weight (w) from the mean of 86 kilograms was computed as follows: d = |w - 86| if d is greater than 7 for approximately 5% of the players, what is the approximate standard deviation of the players' weights? a. 1.75 kilograms b. 3.5 kilograms c. 4.3 kilograms d. 7 kilograms

Which equation results from adding the equations in this system? x+6y=9 and -x+2y=-15