The chinese invented the to fishermen and explorers return to their ports. telescope steam engine abacus compass

B. to study the spatial patterning of forests and forests fires and plan for better use of fire fighting resources in the u.s.

The answer is c) people evacuated but almost all returned

He want to contact the red cross/red crescent because they are the main non profit organization that deals with disasters around the world 

In a right-angled triangle: 1- the hypotenuse is the longest side2- we can apply pythagorean rule which states that: (hypotenuse)^2 = (side1)^2 + (side2)^2for the given triangle,longest side is 15 cm  side1 = 9 cmside2 is 12 cm  to check whether the triangle is right-angled or not,compare (15)^2 to the summation of (9)^2 and (12)^in other words, compare 225 to the summation of 81 and 144if they are both equal, then the triangle is right-angles, otherwise, it is not.you haven't provided the diagram showing her work, so i cannot tell the choice. however, apply my explanation to the question you have.