Hi.
102+6(7)+8 (your equation)
102+ 42+ 8 (since the order is PEMDAS, multiplication has to go first. 6x7=42
144 + 8 (since you go left to right, 102 +42 has to be 1st. Answer= 144)
152 (now the only thing left is 144 + 8, so do that. Answer= 152.)
Since that's the last step, 152 will be your answer.
Hoped I helped and if you need anymore you could always ask me~
-Dawn
B yes both triangles have an obtuse angle
Look at the picture.
The area of the hexagon is equal six times the area of the <span>equilateral triangle.
The formula of the </span><span>equilateral triangle with the leg
a:

Therefore the formula of the area of the hexagon with a side lenght
a is:

We have
a = 12cm. Substitute:

</span>
Just plug in the equation, 1/2*3/10 and multiply it out. Thus, 1*3=3 and 2*10=20
and the answer is 3/20.
Answer:
A
Step-by-step explanation:
process of elimination... :D