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.

Step-by-step explanation:The answer is C.