To complete her holiday wrapping bella needs identical strips of ribbon measuring 3.5 ft each she has 85 ft of ribbon in total about how many pieces of ribbon can she cut from this long strip

The first-serve percentage of a tennis player in a match is normally distributed with a standard deviation of 4.3%. if a sample of 15 random matches of the player is taken, the mean first-serve percentage is found to be 26.4%. what is the margin of error of the sample mean? a. 0.086% b. 0.533% c. 1.11% d. 2.22%

Complete the solution of the equation. find the value of y when x equals to 6 4x+y=20

Bob is putting books on a shelf and takes a break after filling 18 1/2 inches on the book shelf. the book shelf is now 2/3 full. how long is the entire bookshelf?