2 bags contain a(3x-y) and 2b (3x-y) balls respectively. find the terms of, a, b,x and y, and the total number of balls in both bags SHOW THE WORK PLS

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?

If 1 is divided by the sum of y& 4. the result is equal to 3 divided by 4 .find the value of m?

Explain how you can use the associative property to evaluate (7x50)x4.