Change the following mixed expressions to fractions and then simplify the complex fractions.

y-(4x^(5))/(x^(2)-xy)

The marked price of an article is 25% above its selling price and the cost price is 30% less than its marked price . find the discount percent and gain percent. only a brainlest can solve it i will mark you brainlest

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%

For a function f(x), a) if f(7) = 22 then f^-1(22) = b) f^-1(f(c)) =