From my knowledge, convex lenses magnifies and inverts light rays that pass through it. So is it possible to use a second convex lens to make the magnified inverted image into a magnified upright image?

The first-order reaction a→2b+c has rate constant 0.538 s−1. if the initial concentration of a is 0.867 mol l−1, what is the half-life of the reaction in seconds? remember to use correct significant figures in your answer (round your answer to the nearest hundredth). do not include units in your response.