Answer:
7n-2
Step-by-step explanation:
First you need to see by how much the sequence progresses each time, and this is 7.
So you write 7n.
Next you look at the first term of the sequence, which is 5 here and you need to go from 7 to 5.
You minus 2 to go from 7 to 5, therefore the expression would be 7n-2.
