Write 4/9, 5/9, and 6/9 as decimals. what pattern do you see? use the pattern to predict the decimal form of 7/9 and 8/9

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?

Find the zero function by factoring (try to show work) h(x)=-x^2-6x-9

Solve the given system of equations. 2y= -x+9 , 3x-6= -15