Which is 5.348 closer to, 5.3 or 5.4?

What is the ratio of the change in y-values to the change in x-values for this function? a) 1: 13 b) 2: 5 c) 5: 2 d) 13: 1

I’m stuck on this equation, anyone got the answer?

Write the equation in logarithmic form e^x=403.429