Answer:
x=12
Step-by-step explanation:
First, you know a triangle is equal to 180. Since you know the sum of the other two angles equal the outside angle, you can make them equal to each other, like 112=6x+3x+4. Combine like terms to 112=9x+4. Subtract 4 on both sides and divide by 9 on both sides to leave x by itself. This will leave you with x=12
B because it is the answer
Answer:
Area of the given rectangle =

Step-by-step explanation:
area of rectangle = length × width
- area = 6a^4 b × 7a^2 b
- area = 42a^6 b^2
<em>i</em><em> </em><em>hope</em><em> </em><em>it</em><em> </em><em>helped</em><em>.</em><em>.</em><em>.</em>