In the middle school debate club, 30% of the members are in sixth grade. If there are 12 graders in the club, how many total members are there? A) 30
B) 36
C) 38
D) 40

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

One side of a rectangle is 7 feet shorter than seven times the other side. find the length of the shorter side if we also know that the perimeter of the rectangle is 306 feet.

Define multiplicative inverse. give an example of a number and its multiplicative inverse.