Can someone please solve this? And i need it to be done fast please i have a quiz now and it will finish around 10 minutes.

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

The price of an item has been reduced by 30%. the original price was $30. what is the price of the item now ?

Idon’t understand! use slope intercept form to solve: through: (2,5) slope= undefined