Can someone pls answer my question like I have a timed test rn and nobody is helping pls help it’s 2 questions

Explain how you can find the missing fraction in 3 4/5 / (blank) 2 5/7. then find the missing fraction.

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%

Aword processing program requires a 7- digit registration code made up of the digits 1,2,4,5,6,7 and 9 each number has to be used and no number can be used mor than once how many codes are possible