35 is the answer
Explanation, the sum of interrior angme is 180degree
x+(3x+40)= 180
or, 4x= 180-40
or, x= 140÷ 4
or x = 35
<span>It would just be 4.15 times 7 which is </span>29.05
-9(2)+4=-16 you do -9 times 2 which is -18 then you subtract that to 4 which you get -16. hope this helps!
32
,
48
,
72
,
108
,162
Step-by-step explanation:
