15. -2
16. A. The pool was originally empty
supplementary angles = 180 degrees
so x = angle 1
y = angle 2
y = 3x-12
x + 3x-12 =180
4x-12 = 180
4x = 192
x = 192/4 = 48
y = 3(48) -12 = 144-12 = 132
132 +48 = 180
the angle is 132
Answer:
2.2
Step-by-step explanation:
You divide 7.92 by 3.6.
