Explain how to combine various functions and give examples to show addition, subtraction, multiplication and division of functions with examples

F(n + 1) = f(n) – 8. if f(1) = 100, what is f(6)?

Lizette is training for a marathon. at 7: 00 she left her house and ran until 8: 30, then she walked until 11: 30. she covered a total distance of 18 miles. her running speed was six miles per hour faster than her walking speed. find her running and walking speeds in miles per hour.

Find the value of x in the diagram below. select the best answer from the choices provided