Abox of pencils costs $10.the total cost (c) as a function of the number of boxes (b) is expressed as c = f(b) = 10b. what is the domain of this function?

For this case we have the following function:

c = f (b) = 10b

Where,

b: number of boxes

c = f (b): total cost

The domain of the function is:

b ∈ [0, ∞)

Where, the numbers belonging to the domain are whole numbers.

Therefore, the domain of the function are all natural numbers

The domain of the function is:

b ∈ ℕ

hello from mrbilldoesmath!

answer:

x - 3

discussion:

x^2 - 9 = (x-3) (x+3)   so

(x^2-9)/ (x + 3) = x-3

you,

mrb

step-by-step explanation:

divide, then simplify your answer.

1. make -15.66 ÷   5.8 a fraction. then divide.

2. simplify.  

3. final answer.