Please help! How do you calculate the "average percent yield"? I just need the formula. I already know how to find the theoretical yield and percent yield, I just don't know how to find the average or what it means by average.

This line graph compares the growth of plants that were kept in the sun for different amounts of time.a)  on day 7, the plants kept in the sun for 3 hours were how tall? b)  on day 7, the plants kept in the sun for 6 hours were how tall? c)    on day 10, the plants kept in the sun for 9 hours were how tall? d)  on day 11, the plant that was grown with 1 hour of sunlight was how tall? e)  based on the graph, the plant grows best in what amount of sunlight?

Explain how the integumentary system plays a crucial role in the ability to maintain homeoestasis

According to coulomb's law, how would the electrical force between particles change if the product of their electrical charge increased?