Please help 4-6

Question 4 A 7-cm tall object is placed 56 cm in front of a converging lens of focal length of magnitude 30 cm. What is the size of the image in cm? Remember to include Not yet answered the negative symbol in your answer if the image is inverted. Points out of 1.00 P. Flag question Answer: Question 5 When a flower petal is 4 cm in front of a converging lens, the inverted image is half the height of the petal. What is the focal length of this lens in cm? Not yet answered Points out of 1.00 Flag question Answer: Question 6 A 4.0-cm-tall object is placed 50.0 cm from a converging lens having a focal length of magnitude 25.0 cm. What is the nature and location of the image? Not yet answered Points out of 1.00 Flag question O A virtual image, 2.0 cm tall, 10 cm other side of the object A real image, 4.0 cm tall, 50 cm other side of the object O A virtual image, 4.0 cm tall, 20 cm other side of the object A virtual image, 1.3 cm tall, 16.7 cm same side as the object O A real image, 4 cm tall, 50 cm same side as the object