It’s c.
5(how many tickets) x 2(cost of one ticket) equals 10. 25(total amount of money)- 10(how much money the tickets cost in total) equals 15(the entry fee)
10 (how many tickets) x 2(cost of one ticket) equals 20. 35(total amount of money)- 20(how much money the tickets cost in total) equals 15(the entry fee)

but anyway, the numerator will give the angles, and θ is just half of each

ok... that's a negative tiny angle, is in the 4th quadrant, if we stick to the range given, from 0 to 360, so we have to use the positive version of it, 360-4.025
so the angle is 355.975°
now, the 3rd quadrant has another angle whose sine is negative, so... if we move from the 180° line down by 4.025, we end up at 184.025°
and those are the only two angles, because, on the 2nd and 1st quadrants, the sine is positive, so it wouldn't have an angle there
1a+18=7a
18=7a-1a
18=6a
6a=18
a=18/6
a=3
Answer:
1/21
Step-by-step explanation:
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=> 
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=> 1/21