Pls help me with this Q

Which of the following answers is 7/9 simplified? 7/9 2/9 11/9 2/7

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

Determine the domain and range of the given function. the domain is all real numbers all real numbers greater than or equal to –2{x: x = –2, –1, 0, 1, 2}{y: y = –2, –1, 0, 1, 2}. the range is all real numbers all real numbers greater than or equal to –2{x: x = –2, –1, 0, 1, 2}{y: y = –2, –1, 0, 1, 2}.