Its 144. you just subtract the 121 from 265.
All we have to do here is divide 4 by 2
4 ÷ 2 = 2
Therefore, the artist can paint 2 paintings an hour making the unit rate, 2 paintings per hour.
Hope this helps
-AaronWiseIsBae
Each value increases by 37
The explicit formula is:
a(n)=37+37(n-1)