Answer :

abby322e

Answer:

25%

Step-by-step explanation:

5+15=20

20+10=30

30+45=75

100-75=25

you do 100 because that's 1 whole
25%, pie charts all add up to 100% and if you add all the other percentages up together, it equals 75%, so take that number and subtract it (100 - 75) and that equals 25

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