Anumber to the 8th power divided by the same number to the 5th power equals27. what is the number

Don't know how to find x given these segment lengths

Anew shopping mall is gaining in popularity. every day since it opened, the number of shoppers is 5% more than the number of shoppers the day before. the total number of shoppers over the first 10 days is 1258 how many shoppers were on the first day?

What is the equation of the line that is parallel to the line with the equation y= -3/4x +1 and passes through the point (12,-12)