EASY QUESTION!! How can I put this problem in the average rate of change formula?

The dragon family lives 165 miles away from the castle, and it takes them 3 hours to fly there.

What is their average rate of change for the trip?

If g(x) is an odd function, which function must be an even function?

Acompany that manufactures and sells guitars made changes in their product range. from the start they had 20 models. then they reduced the number of models to 15. as a result, the company enjoyed a 10% increase in turnover. - how much did the stock level change? in (%)

A3-dimensional figure has a square base and 4 lateral faces that meet at a point. explain the difference between the cross sections when a slice is made perpendicular to the base through the vertex, and when a slice is made perpendicular to the base and not through the vertex