When dividing 810000 by 1000 the digits in the quotient will move how many places to the right

(01.04 mc) an ice sculpture is melting because of heat. assuming its height changes bynegative 5 over 32m every hour, what will be the change in height after 4 hours?

A50-foot ladder is leaning against a vertical wall. if the base of the ladder is 45 feet from the base of the wall, find the angle the bottling of the ladder makes with the ground.

How is this equation completed? i cannot find any examples in the book.