Question

Can someone please help me with this question?

Answer 1

first you divide them all by 7 to see which are greater than 19

28/7=4
84/7=12
35/7=5
105/7=15 

even if you add 1 to them they all are still less than 19 
so select them all 

hope this helps! :)

Answer 2

Just multiply your 1st number before the = sign by the number after it