2x+5=x-8
-x on both sides
x+5=8
-5 on both sides
x=-13
Answer:

Step-by-step explanation:
we know that
The circumference of a circle is equal to

we have

substitute

assume 

Round to the nearest whole number

Answer:
honestly i think it might be (C)
Step-by-step explanation:
Answer:
there are one thousand (1,000) meters in a kilometer. So, 5,000 plus 10,000 is 15,000 meters.
Step-by-step explanation: