soda pop is on sale at a price $10 for 3 packs. What is the scale factor that can be used to find out how much it would cost to buy 15 packs?

Which choice represents the sample space ,s for this event

Acredit card advertises an annual interest rate of 23%. what is the equivalent monthly interest rate?

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%