Answer:
12s
Step-by-step explanation:
5s + 7s = (5 + 7) s= 12s
This is your answer
Answer:
-4a +22b
Step-by-step explanation:
add the ones with same variable
Answer:
um
Step-by-step explanation:
Answer:

Step-by-step explanation:
Not sure if it wants an integer as an answer but:
Step 1 - Move the negative 3π to the right.

Step 2 - Simplify by adding together

Hope this helps!
Answer:
106.4622
Step-by-step explanation:
Given the information:
- Leg lengths of
and 
Use the pytagon theory to find the hypotenuse of the triangle
<=>
<=>
<=>
Take the square root of both sides
<=> c = 69.4622
=> expression in simplest form for the perimeter of a right triangle is:
+
+ 69.4622
= 27
+ 64
+ 69.4622
= 106.4622