It's B!------------------------------
6*3= 18 km
30/10 = 3 km per hour then 2:00 to 2:10
P=2 (l+w)
we know P=284
we also know that l= w+50
so replace l in the equation with w+50
284=2 (w+50+w)
284=2 (2w+50)
divide both sides by 2
142=2w+50
subtract 50 on both sides
98=2w
divide both sides by 2
49=w
so width is 49, and we need to add 50 to it to find the length
l= 49 +50
l=99
Answer:
212,000
Step-by-step explanation:
212 089, better written as 212,089, rounds down to 212,000.
As an example, 212,589 would round up to 213,000, and
212,389 would round down to 212,000.
