Question

Brooke had 70 chairs but he had less than20 rows how many chair he can put on each row

Answer 1

put in a equality

20 > (70/x)

then you solve 

20x > 70

x>70/20

x> 3.5    you can not put part of a chair in a row so you round up

****You can put  4 or more chairs in a row****

Answer 2

Put in a equality you can put 4 or more chairs in a rows\