Area of a 25 inch tv screen is 300 in.² the area of a 40 inch tv screen is 768 in.² what area of the smaller screen is what percent of the area of the larger screen

Can someone me with this problem . show your work .

What is a graph with a never ending line called?

Amountain climber starts a climb at an elevation of 453 feet above sea level at his first rest stop he has climbed 162 feet and by his second rest stop he has climbed another 207 feet its getting late in the day so the climber starts his way down if the climber desends 285 feet how much does he need to ascend or descend to return to the original starting point