Oakdale middle school received 240 contributions for its bake sale. if 30% of the contributions were pies, how many pies did the school receive? how do you solve the problem?

The answers are 20,30,80,180,960,890,1230,4560. on the first row

Hello! i hope this
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.