What is the exponential form of the following expression? (-5)(-5)(-5) . c . c .c (-5) . C3

(-5)3 . 3c

(-5)3 . c3

(-5) . c6

need help fast pls?
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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?

20 da is equal to a. 2,000 cm. b. 2 m. c. 20,000 cm. d. 20,000 mm

8. kelly wants to buy a magazine that is $25. later the magazine was marked up an additional 20%. what is the new price?