Factor 81p² - 1

a. (3p+1) (9p-1)

b. (9p+1) (p-1)

c. (9p+1) (9p-9)

d. (9p+1) (9p-1)

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The function for the cost of materials to make a muffin is f (x) = 3/4x+3 where x is the number of muffin the function for the selling price of those muffins is g (f (x)) where g (x) = 3x+4 find the selling price of 20 muffins

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Solve the equation 1.2m=0.6