A simple index of three stocks have opening values on day 1 and day 8 as shown in the table below.

What is the rate of change of this simple index over one week? Round your
answer to the nearest tenth.
A. -7.7%
B. - 8.4%
C. 7.7%
D. 8.4%

U.s. internet advertising revenue grew at the rate of r(t) = 0.82t + 1.14 (0 ≤ t ≤ 4) billion dollars/year between 2002 (t = 0) and 2006 (t = 4). the advertising revenue in 2002 was $5.9 billion.† (a) find an expression f(t) giving the advertising revenue in year t.

The discussion of the standards for selection of peanuts that will be used in m& ms and the placement of the m& m logo on the candies speaks to which building block of a sustainable competitive advantage:

Nnette henri is paid an hourly wage of $8.90 for a 32-hour workweek of 4 days, 8 hours daily. for any work on the fifth day and on saturdays, she is paid one and one-half times her regular hourly rate. during a certain week, in addition to her regular 32 hours, henri worked 6 hours on the fifth day and 5 hours on saturday. for this workweek, henri’s total earnings are: