Fatimah works part -time as a beverage can seller. He was paid 10 cents for every can of drink sold. Fatimah wants to earn at least RM20 an hour. Calculate the number of cans of drinks that Fatimah needs to sell in an hour so that her target is reached.

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%