5. Find the ratio of the price of coffee to that of tea, if coffee costs 48 per 100 gm and tea costs ? 280 per kg.

The length of time it takes to find a parking space at 9 a.m. follows a normal distribution with a mean of 5 minutes and a standard deviation of 2 minutes. find the probability that it takes at least 8 minutes to find a parking space. (round your answer to four decimal places.)

At the beginning of a call to the cable company, a message tells customers, "after you finish talking to our customer service representative, you will be asked to take a five-question survey about the level of service you recieved. it would be appreciated if you could stay on the line to answer the survey questions." what type of sampling is the cable company using?

How can you use equivalent fractions to know that 43/200 is between 1/5 and 1/4?