Question

A 2.00cm object is placed at the origin. A lens with a focal length of -22cm...

A 2.00cm object is placed at the origin. A lens with a focal length of -22cm is placed at x=50cm. Another lens of focal length 90.0 cm is placed at x=100cm. Where on the x-axis is the image from the first lens located? What is the object distance for the second lens? Where on the x axis is the image from the second lens located? I've been trying to solve this but i can't seem to get the right answer. Even just the formulas i need to use would help. Thanks!

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