Find the value of in the table below.
The sets in the top row increase by the same amount. Use the known sets in the top row to find how much they increase.
The set 150 starts 20 more than the set 130, and the set 170 starts 20 more than the set 150. So, each set starts 20 more than the set before it.
The set comes after the set 90. Since 20 more than 90 is 110, then .