⦁ An advertising company charges $40 per half-page advertisement and $75 per full-page advertisement. Michael has a budget of $800 to purchase 13 advertisements. ⦁ Define a variable for each unknown.
a for advertisements and
⦁ Write a system of equations to represent the situation.
⦁ How many half-page advertisements does Michael purchase?
⦁ Show your work.
⦁ How many full-page advertisements does Michael purchase?
⦁ Show your work.
⦁

answer: option a.

step-by-step explanation:

you know that the quadrilateral opqr ( a four sided figure) is inscribed in circle. this means that all its vertices are on the circle.

then, by definition, the opposite angles of the quadrilateral are supplementary, this means that the sum of their measures is 180 degrees.

you can observe in the figure that the angles ∠opq   and the angle ∠orq   are opposite, therefore:

then, can be used to d to calculate the measure of ∠opq

answer:   y=2x-3

step-by-step explanation: