help me please. I have been doing this for 18 minutes now and can't figure it out!

Answer:
Step-by-step explanation:
area of rectangle=6×4=24 ft²
area of semicircle
[tex]=\frac{1}{2} \pi (3)^2\\= \frac{9}{2} \pi \\=4.5 \pi \\\approx 4.5\times 3.14\\\approx 14.13 ft^2\\total~area=24+14.13\\=38.13 ~ft^2[/tex]