Which of the following is a nonlinear function? a. ken runs a tutoring service. he charges a fee of $30 per hour. b. greg is driving to another state. he drives 135 miles every 2 hours. c. olivia knitted 2 scarves each day this week. d. linda has $1,500 in a bank account that pays 3% annual interest.

It is d

Step-by-step explanation:

A linear function increases at a constant rate, while a nonlinear function increases at a variable rate.

The interest amount does not change at a constant rate. Every year, the amount paid in interest increases by 3% compared to the amount paid the previous year.

So, the nonlinear function is Linda has $1,500 in a bank account that pays 3% annual interest.