You need to add a picture in order for others to understand what you are referring to.
Answer:
It's 540.
Step-by-step explanation:
You divide 9 by 21 then you multiply it by 1260 and you get 540
Answer:
128 degrees
Step-by-step explanation:
38+90=128
Answer:
35% chose baseball or soccer
Step-by-step explanation:
baseball or soccer = 20% + 15% = 35%
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The categories add to 100%, so are mutually exclusive, as you expect when they are "favorite sport" categories. Hence the union of two of them will be their sum. (Otherwise, you'd have to subtract the amount by which the categories overlap.)