Write log[8]y=x as an exponential function. show work!

The measure of one angle of an octagon is two times smaller that of the other seven angles. what is the measure of each angle?

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?

Maria walks a round trip of 0.75 mile to school every day. how many miles will she walk in 4.5 days