Answer:
I think it's 31.5
Explanation:
How to find the area of a triangle: base times height, then divided by 2
How to find the area of a rectangle: base times height
Base: 7
Height: 3
Area of the triangle: (7x3)/2= 10.5
Area of the rectangle: 7x3=21
10.5 + 21= 31.5
Don't forget to put the units it is measured by!!!
I hope this helped.