the sum of the first terms of a geometric series is 170 and the sum of the 1st and 3rd term is 34.Show that there is one series satisfying these conditions and find the sum of the first 6 terms​

Which expression is equivalent to the expression shown?

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%

Which net represents the pyramid below? meh