Luis makes 4% commission on his sales in a sporting goods store. for a 70$ purchase, how much commission does luis earn

Determine which expressions represent real numbers and which expressions represent complex number. asaaap! plis!

A)a square brown tarp has a square green patch green in the corner the side length of the tarp is (x + 8) and the side length of the patch is x what is the area of the brown part of the tarpb)a square red placemat has a gold square in the corner the side length of the gold square is (x - 2) inches with the width of the red region is 4 in what is the area of the red part of the placemat

Arectangle has a perimeter of 24 inches. if the width is 5 more than twice the length, what are the dimensions of the rectangle?