You do
10x30 + 10x2 + 5x30 +5x2
Answer:
B
Step-by-step explanation:
Ecology is the study of ecosystems. That is, ecology is the study of how living organisms interact with each other and with the nonliving part of their environment.
I am not in 8th grade but it might be the 2nd one
Answer:
swimming: 0,75h
biking: 1,6h
running: 1h
Step-by-step explanation:
Answer:

Step-by-step explanation:
GIVEN: kayden paddled a canoe to an island. the island is
miles from the shore. his trip to the island took two hours while paddling against the current. he paddles
mph with no current.
TO FIND: what was the speed of the current.
SOLUTION:
distance of island from the shore
miles
total time taken by Kayden
hours
speed of Kayden in still water 
Let the speed of current be 
Speed of Kayden against current 
As,




Hence speed of current is 