Tell whether the sequence is arithmetic if it is identify the common difference -1 7 15 23

Haruka hiked several kilometers in the morning. she hiked only 66 kilometers in the afternoon, which was 25% less than she had hiked in the morning. how many kilometers did haruka hike in all?

What are the first 4 terms in the multiplication pattern given by the formula 2×4n

The function f(x) = 14,600(1.1)* represents the population of a town x years after it was established. what was the original population of the town?