2. A lens is being used to look at an object 40cm away. An image appears 20 points 30 cm away. What is the focal length of the lens?

56.16 gregor mendel was the first scientist to use statistics to analyze scientific data. before mendel's experiments, scientists believed that organisms acquired traits from their environment and passed them on to their offspring. after mendel's discoveries were accepted, scientists realized that traits passed to offspring were the result of genes being passed from parents to offspring. this is an example of pls

What happened to the amount of carbon dioxide in the atmosphere from 2010–2017?

According to the tide table below what time of day will the highest tide occur? (2 pt) the highest tide will occur at