Question 2 multiple choice worth 4 points)
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simplify 5^3 / 5^8
a. 1 / 5^3
b. 5^3
c. 1 / 25
d. 1 / 5-^3

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?

What expression is equivalent to 42x-56y

Evaluate cos2θ for cosθ = square root of 3/2