Example: The sum of 2x and 9 = (2x + 9) 1) The sum of three times a number, x, and 12

2) The sum of 5z and a number, n.

3) The sum of 5z and a number n, decreased by 35.

4) The sum of a number x, and 4, and 7

5) The sum of a number z, and 9 and 18

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