Sarah and Miguel have been growing marigold plants to use in an experiment. They
have tracked the growth of their plants over the last four weeks. The growth data
can be see in the table above. What is the standard deviation of their data?

Suppose there is a simple index of three stocks, stock abc, stock xyz, and stock qrs. stock abc opens on day 1 with 4000 shares at $3.15 per share. stock xyz opens on day 1 with 5000 shares at $4.30 per share. stock qrs opens on day 1 with 6000 shares at $4.60 per share. the price of stock abc on day 8 begins at $3.50. the price of stock xyz on day 8 begins at $3.90. stock qrs opens on day 8 with a price of $4.50 per share. assume that each stock has the same number of shares that it opened with on day 1. what is the rate of change of this simple index over 1 week?

Answer this question, only if you know the answer. 30 points and brainliest!

What is the slope simplify your answer and write it as a proper fraction, improper fraction, or integer