can someone please help me work these problems!

Magnification Problems 1. Jason Hayes is looking at a rare stamp with a magnifying glass. If the stamp is 0.3 meters from the glass and the image distance is 0.6 meters, what is the magnification of the lens? 2. Clay Spencer has a lens with a magnification of 1.4. If the image height is 0.4 meters, what is the object height? 3. Lisa Davis is looking at a giraffe through a telescope with an eyepiece focal length of 2 centimeters and an objective lens with a focal length of 60 centimeters. What is the magnification of the telescope? 4. Sonny Quinn's telescope magnifies 40 times. If the eyepiece has a focal length of 3 centimeters, what is the focal length of the objective lens? 5. Danny Cooper has a magnifying glass with a near point of 25 centimeters. If the focal length is 5 centimeters, what is the angular magnification of the lens