For what value of x is the rational expression below equal to zero?
x-1
(x-3)(x + 1)

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?

1mile equals approximately 1.6 kilometers. which best approximates the number of miles in 6 kilometers?

The final cost of a sale is determined by multiplying the price on the tag by 75%. which best describes the function that represents the situation?