A pet sitter charges $20 for supplies and $10 per hour of service. The equation C = 10n + 20 describes the total cost that she would charge for n of hours of service. If a client is charged $50 for her service, for how many hours did she babysit his dog?

Find two rational expressions that have the difference of 2-n/n-4

Each of the walls of a room with square dimensions has been built with two pieces of sheetrock, a smaller one and a larger one. the length of all the smaller ones is the same and is stored in the variable small. similarly, the length of all the larger ones is the same and is stored in the variable large. write a single expression whose value is the total area of this room. do not use any method invocations.

Which of the following graphs represents the function f(x) = 2^x