Answer:
35
Step-by-step explanation:
2x+1=71
71-1=70
70÷2=35
therefore x must be 35
639÷9=71. You can check your answer by doing 71x9=639
is that what you looking for
Answer:
9 rows x 6 columns = 54 people.
Step-by-step explanation:
9 rows and 6 columns.
So there must be 9 rows of people, and each row is 6 people deep. (That is how they get the columns! Duh!)
9 x 6 = 54 people
Answer:
8. none
Step-by-step explanation:
20√288
=240√2
=339
