Answer:
f
Step-by-step explanation:
28ft, 4ftx10ft. 2 4ft edges and 2 10ft edges. (2x4) + (2x10)= 28 ft

Rewrite the fraction as division:

Make them into single fraction:

Change the divide fraction into multiplication fraction:

Factorise the difference of square a² - b² = (a + b) (a - b) :

Cancel the common factors:
I cannot see it will , Try to message me and send a better photo please !
Would it be 6 because if it is third half it