1. The cost (in dollars) per unit of making x photocopies at The Office Shop is given 18 cents for at most 20 copies
► 12 cents for more than 20 copies up to 50
9 cents for more than 50 copies but less than 100
5 cents for 100 copies or more but up to 200
> 3 cents for more than 200 copies
Part A: Write the piecewise-defined function that represents the situation.
Part B: Represent the function on the graph below.
Part C: Explained why it would not be cost-effective to make 150 photocopies.

(2x + 16) + (x) = 180

step-by-step explanation:

given,

abcd is a quadrilateral inscribed in a circle

angle a is labeled x plus 16, (x + 16)

angle b is labeled x degrees, (x)

angle c is labeled 6x minus 4, (6x – 4)

angle d is labeled 2x plus 16, (2x + 16)

what equation can be used to solve for angle b?

we know that the sum of the opposite angles of a simple quadrilateral inscribed in a circle is 180 degrees.

angle b is opposite angle d

therefore, angle b + angle d = 180

(x) + (2x + 16) = 180 

same as (2x + 16) + (x) = 180

-1   1/6.   you dont subtract the denominators

step-by-step explanation:

hope this !