Okay so can someone tell me if i’m solving this correctly? i did x=12*6 and got 72 & then i simplified it and got 8.48 so if it’s right would 8.48 be the answer and not 72?

How many grams must be adde to 970g to make 1 and a half kg

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

I’m confused on how to work the pie charts