100+75+70+x= 360° (sum of interior angles of quadrilateral)
x= 360-245= 115°
<span>About a third of the residents prefer a park improvement of more trees.</span>
3,6
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Answer:
-6
Step-by-step explanation:

input the numbers

do the problem in the parentheses first
-6-12 = -18
now it becomes

simplify and you'll get
-6
this is because -18 ÷ 3 =
-6
15x=180
x=12
hope this helps