Suppose the number of daily sales of a product was found to be given by 
, x days after the start of an advertising campaign for this product. Find the average daily sales during the first 25 days of the campaign-that is, from 
style="vertical-align:middle;" /> to 
. Round your answer to the nearest dollar.
?
A. $133
B. $130
C. $127
D. $265
E. $255
Answer: A
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Find an equation of the tangent line at x = a.y = 
; a = -2
A. y = -1x - 1 B. y = -4x - 1 C. y = -1x - 2 D. y = -1x + 1
Solve the problem.A scarf manufacturer requires 
yard of fabric for each scarf produced. Find the number of scarves that can be made from 867 yards of fabric.
A. 520 scarves B. 1445 scarves C. 2168 scarves D. 347 scarves
Write an algebraic equation and use it to solve the problem.A poster in the shape of a triangle has one side that is five inches more the length of the shortest side, and another side that is three inches less than twice the shortest side. Find the dimensions of the poster if its perimeter is 38 inches.
A. 9 inches, 15 inches, 15 inches B. 9 inches, 14 inches, 16 inches C. 10 inches, 14 inches, 15 inches D. 9 inches, 14 inches, 15 inches
Simplify the exponential expression.
A. x7 B. 5x6 C. x6 D. 5x7