Answer:
thou answer is gonna be 20.8
Not the whole answer but hope it helps. We know the length of one side and two inner angles. The equivalent of all the inner angles is 180° if you do 68°+56°=124° . Then if you subtract the 124° and 180° you get 56° . That means that you have two equal angles laying under the sides of the triangle. That means that the sides are equal. If the sides are equal that means that the other side is also 1.3 and that will help you get to the final aka CA
Y=1020-85x because since it's a decrease it would be goung do, hence the subtraction
Using the elimination method
2(6x - 4y = - 24)
4x - 8y = -32
==>12x - 8y = -48
4x - 8y = -32
subtract top to bottom
==>8x = -16
4x - 8y = -32
==>x = -2
4(-2) - 8y = -32
==>x=2
-8y = -32 + 8
==>x = -2
-8y = -24
==>x=-2
y = 3