a and c i think
the blue circle is all the people who had brothers one name was in the blue circle so one person had a brother but the in between part of the too circles are who had both a brother and a sister so the is one name in the between purple so you count that one to for brother and for sisters
there were 2 people that had brother
and four people that had sisters
and one that had both
Answer:
90
Step-by-step explanation:
Answer:
Step-by-step explanation:
x = 10
x = 20 / 2
x = 4*5 / 2
