Ahot air balloon is 910 feet above sea level. it is rising at a rate of 4 feet per second. how high is the hot air balloon after 80 seconds?

One of every 20 customers reports poor customer service on your company’s customer satisfaction survey. you have just created a new process that should cut the number of poor customer service complaints in half. what percentage of customers would you expect to report poor service after this process is implemented? 1.) 5% 2.) 10% 3.) 2% 4.) 2.5%