C I'm pretty sure even though the real answer is 1979 so its d or c
Answer:
Markup, 42% profit
Step-by-step explanation:
(someone check this)
Answer:
R-1={(2,1),(3,2),(9,3),(5,4)
Step-by-step explanation:
R-1={(2,1),(3,2),(9,3),(5,4) because (- 1) means reverse in relation
Recall that for a polygon to have 180° as the sum of its interior angles, then it must have three sides and thus a triangle. And similarly, for a polygon to have a sum of 360°, it must have four sides or it is a quadrilateral.
[Note that for larger angles, we can apply the formula 180(n - 2) to find the total sum of the interior angles. n is the number of sides]
Now, since we're comparing a four-sided and three-sided polygon, this means that they only differ by 1 side.
Answer: A. 1 side
1650 - 1200 = 450
What percent is 450 of 1200?
y = 450/1200
y = 0.375
37.5% increase