The area A of a rectangular garden is given by the expression2^2+ 2 − 12. The length L of the garden is
given by the expression x2 - 9. Find an expression for the width W of the garden. (Recall that A = LW). What
are the excluded values in this calculation and what do they represent in context?

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

The weights of broilers (commercially raised chickens) are approximately normally distributed with mean 1387 grams and standard deviation 161 grams. what is the probability that a randomly selected broiler weighs more than 1,425 grams?

How many sides does a regular polygon have if each exterior angle measure is 45 degrees explain your answer, i really don't understand this.