physics is way to hard fo me plz help?

Question

1. A person uses a converging lens that has a focal length of 10.0 cm to inspect a gem. The lens forms a virtual image 26.0 cm away. Determine the magnification???
2. A goldfish is swimming at 4.60 cm/s toward the front wall of a rectangular aquarium. What is the apparent speed of the fish measured by an observer looking in from outside the front wall of the tank? The index of refraction of water is 1.333. (cm/s)??
3. A person walks into a room that has, on opposite walls, two plane mirrors producing multiple images. Find the distances from the person to the first three images seen in the left-hand mirror, when the person is 13.0 ft from the mirror on the left wall and 12.0 ft from the mirror on the right wall.
First image? Second Image? Third Image?

PLZ HELP

Answer 1

Dewd..... These are all just "plug 'n chug" problems. Maybe you should think about studying a bit more? Or drop the course and take it again next year?

Doug