You manage a bookstore and sold 95 out of 100 "do it yourself" home repair books. what percent of the books did you sell?

He weights of 2-pound bags of best dog food are approximately normally distributed with a given mean  and standard deviation  according to the empirical rule, what percentage of the bags will have weights within 3 standard deviations of the mean? 47.5%68%95%99.7%

The distance between two points is 6.5cm and scale of map is 1: 1000 what's the distance between the two points

Using only the digits 5, 6, 7, 8, how many different three digit numbers can be formed if no digit is repeated in a number?