After sharing with the class, dana has 4/12 of her cupcakes left. what is the fractional part of the cupcakes did she share with the class?
a. 2/3
b. 1/4
c. 3/4
d. 1/3

Which equations represents circles that have a diameter of 12 units and a center that lies on the y-axis? check all that apply

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%

21 type the correct answer in the box. use numerals instead of words. if necessary, use / for the fraction bar. the solution set of n2 - 14n = -45 is { (separate the solutions with a comma)