Please help i dont understand

Do 12/14 and 8/10 have the same value? explain your answer.

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

Graph y ≥ -x^2 - 1. click on the graph until the correct graph appears.