Answer:
x= -4
3/6 is 1/2 so -2/4 is equal to one half
;) you can do it.
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Since the numbers are close together and you do not have any outliers, the mean would be the best measure of central tendency.
The value is
(5+6+7+8+9)/5 = 7
Sum of triangle angles = 180
smallest angle = x
second angle = 3x
third angle = x +35
180 = x + 3x + x + 35
145 = 5x
x = 29 is the smallest
the second is 87
the third is 64