What was an effect of japan's fighting with china in the 1930s?

Japan's fierce military aggression in China led the United States to enact trade sanctions against Japan in the hope that this would make the Japanese leaders to end their brutal war on China. This angered the Japanese who decided to ally themselves with Hitler's Germany & Mussolini's Italy. The Japanese signed the Tripartite (Axis) Pact on September 27, 1940.

Explanation:

Japan was desperate for resources

answer; the period of time known as the middle ages;

the perimeter of a triangle is 69 cm. side a is 5 cm shorter than side b. side c is twice as long as side a. find the length of each side. i need to know how to do it in 2 equations.  

equations:

a = b-5

c = 2a

a + b + c = 69