Question:are you in fifth grade because I learned this also in fifth grade and it's hard so probably I'm going to be wrong but I don't care
Answer:so,first I would do is split the figure horizontally.than I would write figure A and figure B.Next I would multiply the side numbers of figure B whiches 4 multiply by 2 and 1 whiches 8.Next for figure A is 2 multiply by 1 whiches 2. Finally add 8 by 2 whiches 10
Answer:10