D because its a triangle so it would be 3x but then you have to add the 4 for the longer side.
First make it that both denominators are the same.

Then add both numerators

Your final answer should be
Answer:
0.083333333333 or 8.3%
Step-by-step explanation:
3/9x2/8
The second fractions has a demoninator of 8 bc u already took one from the bag and didnt return it
Answer:
11 + x
Step-by-step explanation:
A = LW
W = 
Plug in given information:
W = 
Factor the numerator:
W = 
Cancel (11 - x):
W = 11 + x
It should be
3cm
1.3cm
7in
the pythagorean theorem is that the two smaller sides is equivalent to the biggest side. (A+B = C)