The answer is 3 and you have to subsitute -6 in for n to get your answer
Answer:
A=30 B=60......…...............
Answer:
x=80
Step-by-step explanation:
The sum of interior angles in a quadrilateral is 360°
the square represents a right angle= 90 degrees
124+66+90=280
360-280=80
x=80
2(12+18) is not equivalent to 24+18
