**Answer:**

it D

**Step-by-step explanation:**

Trust me

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Total= fee +commission

Here, fee=$4500

commission, 5% of fee, i.e., 4500*5/100 =225

So, Total would be $4750....

**Answer:**

R-{-5}

**Step-by-step explanation:**

you get the vertex by making the denominator =0

ex.z+5=0 ,z=-5

then we see if the rational function has a constant beside it ex. 3÷z+5-3 ,but in this you Don't have one so its 0

so the vertex would be (-5,0)

the domain =R-{-5} , range=R-{0}

**Answer:**

-1

**Step-by-step explanation:**

-1 is the constant in the expression 4x - 1

**Answer:**

12x^y-12

**Step-by-step explanation:**

Multiply 3 by 4

12x^y-4⋅3

12x^y-12