The correct answer is C because when using distributive property it simplifies back to 5b+30
Triangle formula to find surface area base x height divided by 2. Rectangles. Base x heights.
The two triangles equal
16x15 then divide the answer by 2. Then times the one triangle by two. P.S. This is instructions for one triangle. Times the surface area of one triangle by two.
The bottom rectangle
16 x 10. That’s it
The two side rectangles
17 x 10. They times the answer you get for 17 x 10 by two.
Add all the surface areas together, and their is your answer.
Answer:
okay so the circumference is 40.82m

the diameter will be divided by 2 to give 6.5
Since y has to be larger, the area is above the line.
Since the boundary is included (because of ≥ in stead of >) it should be drawn as a solid line.
Brings us to answer A, right?
See plot below.