2.
180 degrees
Clockwise or counterclockwise. Both directions give the same result.
3.
90 degrees
Clockwise.
X=90 degrees you can get the answer by adding up all the angles
3 (x-5) = 18
3x - 15 = 18
3x = 18 + 15
= 33
x = 11
I hope this helped! :)
So all the multiples of 3 are...
3, 6, 9, 12, 15, 18
and of those, the ones not divisible by 2 are...
3, 9, 15
So 70 students had bought lunch because 70% of 100 is 70. Now take away 60% of that and you get 42.
