246,947÷40= R
It has a rimender pleas help​

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

This is so hard and it’s for a test

The two square pyramids are similar. find the total volume of both pyramids if the ratio of their surface areas is 9/16