A 30 foot ladder leans against a wall. The foot of the ladder makes an angle of 60° with the ground. How high up the wall does the top of the ladder reach?

What are the answers for the following questions?

Which ecosystem best fits the characteristics listed below? which ecosystem best fits the characteristics listed below? ii. seasonal migrations of millions of wildebeests, zebras, and elephants iii. large numbers of predators, such as lions iv. acacia trees and grasses a. the congo rainforest b. the african mangroves c. the serengeti grasslands d. the sahel

Which most likely was persia’s most valuable asset?