The diameter of circular park is 80 m find its area​

Herbivores, carnivores, and omnivores are all types a. decomposers b. producers c. consumers d. biomes

Acaterpillar tries to climb straight up a wall a meter high, but for every 2 cm up it climbs, it slides down 1 cm. eventually, it reaches the top. when it reaches the top, it does not pull itself over so it will slide down 1 cm. what is the total displacement traveled?

This is for my 8th grade science class, i really don’t understand. can someone me? , lol.