Answer:
45
Explanation:
X+30=3x and then u just solve the equation.
Answer:
Roosevelt, with his “big stick” policy, was able to keep the United States out of military conflicts by employing the legitimate threat of force. Nonetheless, as negotiations with Japan illustrated, the maintenance of an empire was fraught with complexity.
Answer:
Indus river (India): Harappa And the city of Mohenjo-daro
Nile river (Egypt): Ancient egyptian pryramid structures, obelisks, System of mathmatics, Medicine development, etc.
Huang he (China): The great wall of china build, development of budda religion, growing rice products.
Tigris-Euphrates (Mesopotamia): The wheel, plow tool, and cut canals and river connections.