What is the unknown variable y-3.5=-2.1

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

Lisa has three classes that each last 50 minutes. what is the total number of minutes of the three classes

17 in long 1.3 ft wide and 8in high what is the volume