Hello, can someone help me with this pdf? i will need a step by step explanation please. It is about Hypothesis testing for 2 mean. (statistics)

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

Complete the equation of the line through (−10,3) and (−8,−8). use exact numbers.

Terri makes a quilt using three sizes of fabric squares the side lenght of each fabric square is the square root of the area