A shirt was on sale for 25% off. If the shirt was 39$, What was the price of the shirt after the discont

For the first question the answer is a, for the second c, for the third d, for the 4th b, for the 5th a

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since the cosine is the ratio of the adjacent side to the hypotenuse, you can see that cos 60° = ½. answer. according to the property of cofunctions (topic 3), sin 30° is equal to cos 60°. sin 30° = ½.