Asquare rug has an area of 25^2 . find the length and width of the rug. you do not have to put a label in your answer for credit

What is the y-intercept of the line given by the equation

Will mark brainliest! ( explain the answer too, it can be one sentence)

Atreasure chest sinks at a rate no less than 20 feet er second. the floor of the icean is at most at -4,200 feet. will the tresure chest reach the ocean floor in less than 3 minutes? explain.