What does it mean to say that the amount of money from the previous month is quadrupled

Therefore, the inverse of f(x)=-8x+4 is (4-x)/8

What is mathematic expression?

A mathematical expression is defined as the collection of the numbersvariables and functions by using signs like addition, subtraction, multiplication, and division.

here, the function given is f(x) = -8x+4

and to find its inverse we replace f(x) = x and x = f(x) and solving for f(x) we get :

f(x) = -8x+4

x = -8f(x) +4

8f(x) = 4-x

f(x) = (4-x)/8

Therefore, the inverse of f(x)=-8x+4 is (4-x)/8

check and know more about function here :

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To  find the inverse of f(x) = -8x + 4,

1) replace "f(x)" with "Y:"    y = -8x + 4

2) interchange x and y:     x = -8y + 4

3) solve this result for y:    -8y = x - 4, or y = (x - 4)/(-8)

                                         -1

4) replace this "y" with  f       (x): ":

  -1             x - 4

f      (x) = - ----------

                      8

Given that, the length of the garden is 2(x+6)feet and width is 3.5x feet.

So, length : l = 2(x+6) and width = 3.5x.

To find the fence of the garden we need to find the perimeter of the rectangle.

Formula to find the perimeter is:

p = 2l + 2b

= 2*2(x+6) + 2*3.5x

= 4(x+6) + 7x By multiplication.

= 4x + 24 + 7x By distribution property.

= 11x + 24 Combining the like terms.

So, he need to buy 11x + 24 feet fencing.

Hope this helps you!

Answer:

4.  c = 4n.

Step-by-step explanation:

The total cost = price of 1 pineapple * the number of pineapples bought.