Answer:


Step-by-step explanation:
Given

per copy
Solving (a): Linear Equation
The total charges (y) is: the base charge + the rate * number of copies (x).
So, we have:

<em>The 0.44 is 44 cents converted to dollars</em>

Solving (b): Purchase if he budgets $76.16
This implies that y = 76.16
So, we have:


Collect like terms


Solve for x


Answer:
A and C
Step-by-step explanation:
Put the points on a graph and determine if they are perpendicular.
They are, in fact, perpendicular.
This question needs more information
Answer:
8x^4+9x^3+4x-1
Step-by-step explanation:
(6x^3 – 5x^2 + 3x – 5) + (8x^4 + 3x^3 + 5x^2 + x + 4)
Group like terms
8x^4+6x^3+3x^3-5x^2+5x^2+3x+x-5+4
8x^4+9x^3+4x-1