The original piece of a book is $25. the book is on sale for 30% off. what percent are we paying? what is the price you will pay for the book show work please and thank you :)

Monthly water bills for a city have a mean of $108.43 and a standard deviation of $32.09. find the probability that a randomly selected bill will have an amount greater than $155, which the city believes might indicate that someone is wasting water. would a bill that size be considered unusual?

If chord ab is congruent to chord cd, then what must be true about ef and eg?

Sketch the region enclosed by the given curves. decide whether to integrate with respect to x or y. draw a typical approximating rectangle and label its height and width. y= 5x, y=7x^2then find the area s of the region.