Sean is at the top of a light tower 800 ft above the sea level. he sees a boat in the distance and measures the angle of depression to be 3.5degrees. one hour later the angle of depression is 5.2degrees. how far did the boat travel in the hour?

Arectangle has a width of 5 cm and a length of 10 cm. if the width is increased by 3, how does the perimeter change?

The ph level of a blueberry is 3.1 what is the hydrogen-ion concentration [h+] for the blueberry

Amir wants to proportionally increase the size of a photo to create a poster for his room. the size of the original photo is shown. complete the statement and then answer the question to represent ways that amir can increase the size of his photo.