what is the probability of picking an exact match in a Cash 3 lotto gane where you choose three numbers 0 to 9 and have three possible digit plays​

What is the solution to the system of the equations? x = y - 3 x + 3y = 13

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?

Given f(x) = 2x^2- 5x+1, determine the function value f(2). do not f(x) = in your answer