I NEED HELP PLEASE WITH THIS MATH QUESTION

Which of the following situations represents a linear relationship? a. theresa increases the distance she runs by 0.1 miles every week. b. the volume of a box depends on the length of box. c. the amount of money in a bank account increases by 1 percent each year. d. the population of a town doubles every 5 years.

Use composition to determine if (x) or h(x) is the inverse of f(x) for the limited domain x2-1.

Find the distance between the pair of points a(-1,8) and b(-8,4)