The answer is 15 km I think.
They should screen out 99 to 100 percent of uv rays. Hope this helps!
Answer:
It depends ln how tall the wall is if you don't have a number for the wall then I cannot answer this I'm sorry
Step-by-step explanation:
Answer:
18/5
Step-by-step explanation:
36/10
First find a number that goes into both the two numbers.
...2 can go into both of them...
36 / 10
(÷2) (÷2)
18 / 5
Now we have to see if any other number goes in to these new numbers...
There are no numbers that goes into both...
Hope this helped! <3