PLEASE I AM REALLY FONFUSED

Hi, there your answer

Number 15: 16

Number16: 176

Number 17: 0

Number 18: 12

Number 19: -3

Number 20:-52

Number 21:{−9}

Number 22: {13}

Number 23:{1}

Number 24:{−90}

Number 25:{−2}

Number 26:{−2}

Number 27:{56}    

Number 28:{9}

Number 29:{15}  

Number 30: {−10}

Step-by-step explanation:

The answer are in bold I don't know if you are looking for the work or the answer???

Hope this helps :)

- click here to get an answer to your question ✍ 75 i will mark one of the angles formed by two

step-by-step explanation:

same question do you know the answer