Check the point at (11,2) is a solution of the system shown below. (ignore the question on the bottom)

Anyone know? will mark brainliest if you're correct!

Last year, a state university received 3,560 applications from boys. of those applications, 35 percent were from boys who lived in other states. part a)how many applications did the university receive from boys who lived in other states? part b)applications to the university from boys represented 40percent of all applications. how many applications did the university receive in all? i don't how to do part b so me and plz tell how you got your answer

State if the two triangles are congruent. if they are, state how you know?