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 x^3 + 7x^2 + 4x - 12

=(x^3 - x^2) + (8x^2 - 8x) + (12x - 12)

=x^2(x - 1) + 8x(x -1 ) + 12(x - 1)

=(x - 1)(x^2 + 8x + 12)

=(x - 1)(x + 2)(x + 6)

=> Option B is correct

Hope this helps!

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answer: the value should be used for i in the formula of calculation the monthly payment , the interest rate per period is 0.85.

step-by-step explanation:

the given rate of interest i= 85%

in calculating the monthly payment for a loan with an interest rate compounded monthly, the value of the interest rate per period we use in the formula must be in decimal form.

to convert it in decimal, we divide it by 100, we get

hence, the value should be used for i in the formula of calculation the monthly payment , the interest rate per period is 0.85.

from the figure we get,

the x axis shows   the months and,

the y-axis shows the number of satisfied customer.

each line or each cell in upward direction (y-axis) shows 500.

the appropriate scale for the y - axis is: -

a = 2000 customers

b = 4000 customers

c = 6000 customers

d = 8000 customers

e = 10000 customers

f = 12000 customers

g = 14000 customers