The answer to your question would be...
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answer: c = d/a + b
(please give thanks if i am correct)

Actually Welcome to the Concept of the Inverse Trigonometry Function.
So here, we get as
SinX = 1/2
X = Sin^-1(1/2)
X= 30°
Answer:
B 
Step-by-step explanation:
Event A = 2
Event B = 3
Ian and Ella play both so that would add 2 more people.
Total who play soccer or basketball = 7
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Total amount of people who took the survey = 10
