Answer:
174
Step-by-step explanation:
You should look at the mean and do this:
5*28 so now you know all the ages which is 140 now you do 140/29 and you get 4.8....... so you can see that the answer is 174
The simplified form is 6x-6
we know that s = 3, so plug it in.
P = 6(3)
P = 18
perimeter = 18 km
