Answer:

Step-by-step explanation:

Answer:
a+4b-24
Step-by-step explanation:
With pythagorean theorem and working backwards, you do 8100-1225 to get 6875, you then get the square root of that to get x=82.91 or rounded to 82.92
1. the answer is D
2. You are correct it is vietnam
3. the answer is 1947