Answer:
9x
Step-by-step explanation:
6x + 3x
6 + 3 = 9
add the x and you get 9x
i hope this helps
-29.4102647752 the answer I think
Answer:
Triangle #1 is similar to Triangle #2
Step-by-step explanation:
For two triangles to be similar, they need to be the same shape but not size. These two triangles are the same shape but not size :)
The other answers available also don't match. It cannot be 1 or 2 because they are definitely not true. Answer 3 and 4 don't really make sense.
not to buy all of them they can by 55 boxs
For

the area is

find S
S=(10+11+12)/2=(33)/2=16.5



area=51.5212
rounded
52 square inches