Simplify quantity 1 over 9 minus 1 over x all over 1 over 81 minus 1 over x squared

Sasha drank 8 bottles of water everyday for a week. how many bottles of water did she drink in total?

The boiling point of water at an elevation of 0 feet is 212 degrees fahrenheit (°f). for every 1,000 feet of increase in elevation, the boiling point of water decreases by about 2°f. which of the following represents this relationship if b is the boiling point of water at an elevation of e thousand feet? a) e = 2b - 212 b) b = 2e - 212 c) e = -2b + 212 d) b = -2e + 212

Determine domain and range, largest open interval, and intervals which function is continuous.