Commutative law: a+b=b+a thats it...
So 9+7 can also be written as 7+9=16
Answer:
the = symbol
Step-by-step explanation:
there are 16 oz in a pound
Exactly one activity:
246None of the activities :
1At least one activity:
74Snowboarding and Ice skating but not skiing:
5Snowboarding or ice skating but not skiing:
132.
Only skiing :
119.
The diagram is in the attachment.