I have been stuck on this question for days... What is 1 + 1 First, I got the answer was 9, then I got fish, and now I got red!! HELP OR ILL FAIL 8TH GRADE

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?

Why do interests rates on loans to be lower in a weak economy than in a strong one

[15 points, algebra 2]simplify the complex fraction and find the restrictions.