Answer:
u say which but don't even give us options.
Answer:
99cm^2
Step-by-step explanation:
When finding an area of a triangle, you multiply base times height and then divide by 2.
In this case,
Height:11
Base: 18
So then apply the formula:

Solve (using a calculator lol)
We get 99
Don't forget units!
So the final answer is 99cm^2
42 because you have to multiply the reciprocal
-9,-5, -1, 10 is the right order
Answer: 20.2
Add all the angles and set it equal to 180
Combine like terms
20x-2=180
X= 9.1
The equation for v is 2x+2
Replace x with 9.1 and then solve