5th grade math. Correct answer will be marked brainliest!

Restrictions on f(x) = 1/x+5 and g(x) = x-2

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

Need on this geometry question. explain how you did it.