What is academic discourse? A. a way of asking questions to help listeners participate more actively.
B. a way of conducting research that includes both reading and interviewing
C. a way of discussing a topic that leads to critical thinking and complex understanding.
D. a way of leading a class in which the teacher lectures and the students listen.

C.a way of discussing a topic that leads to critical thinking and complex understanding.

Hope this helps! Have a good day!

substitute y = 2x - 4 to x + 2y = 12:

x + 2(2x - 4) = 12     use distributive property

x + (2)(2x) + () = 12

x + 4x - 8 = 12     add 8 to both sides

5x = 20     divide both sides by 5

x = 4

put the value of x to the first equation:

y = 2(4) - 4

y = 8 - 4

y = 4

d when mathilde realizes she has lost the necklace