PLEASE HELP ME ON SOME OF THESE!!! I AM SO CONFUSED!!

Answer:
4) (2x)(2x)(0.5)=shaded area
5) (7x)(5x)-(3)(4)(0.5)=shaded area
6) (3x+3)(x+4)-(2x)(x+4)(0.5)=shaded area
7) (3x)(2x)-(2x)(x)(0.5)-(x)(x)(0.5)=shaded area
8) (6x)(4x)(0.5)+(10x)(4x)(0.5)=shaded area
9) (4x+2)(x+3)+(2x)(x+3)(0.5)=shaded area
Step-by-step explanation: