Which situation represents a total change in value of 0? A) You climbed 15 feet up a tree before coming back down 15 feet,
B) You climbed 3,000 feet up a mountain and then climbed down 1,000 feet to camp.

A

Step-by-step explanation:

this is because think of it as walking up the stairs, you walk up 3 steps and turn around and walk down 3 more, therefore you climb 15 feet up and climb the same amount of feet back down

42

step-by-step explanation:

if you are looking for the unit rate then the answer would be 9 because unit rate is distance divided by time.

step-by-step explanation: