Emily is making a punch that contains 75% apple juice and the rest ginger ale. the punch has 2 liters of ginger ale.
part a: write an equation using one variable that can be used to find the total number of liters of apple juice and ginger ale in the punch. define the variable used in the equation. (5 points)
part b: how many liters of apple juice are present in the punch? show your work. (5 points)

The following frequency table relates the weekly sales of bicycles at a given store over a 42-week period.value01234567frequency367108521(a) in how many weeks were at least 2 bikes sold? (b) in how many weeks were at least 5 bikes sold? (c) in how many weeks were an even number of bikes sold?

The standard deviation for a set of data is 5.5. the mean is 265. what is the margin of error?

An office supply company conducted a survey before marketing a new paper shredder designed for home use. in the survey, 80 % of the people who tried the shredder were satisfied with it. because of this high satisfaction rate, the company decided to market the new shredder. assume that 80 % of all people are satisfied with this shredder. during a certain month, 100 customers bought this shredder. find the probability that of these 100 customers, the number who are satisfied is 69 or fewer.