Last question for today: -4/7en - 3/7en = ?

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

Find the value of x for which the lines are parallel.

15m is what percent of 60m; 3m; 30m; 1.5 km? the last one is km not m