Tìm tập xác định của hàm số: f(x)= x+2/ /x/ -1

Suppose a ball is dropped fromca height of 6ft. it bounces back up but time it bounces, it reaches only 7/10 of its pervious height. what is the total of each height that the ball reaches after 5 bounces

The function f(x) = 14,600(1.1)* represents the population of a town x years after it was established. what was the original population of the town?

If the sales price of a dvd is $20 and the markup is 34%, what is the cost of the dvd?