Area=legnth times width
36 and 1/4=8 and 3/4 times width
conver to imrpoer
36 and 1/4=145/4
8 and 3/4=35/4
145/4=35/4 times x
times both sides by 4
145=35 times x
divide both sides by 35
29/7=x
4 and 1/7=x
answer is 4 and 1/7=legnth
F(x) = 1/4x -3 = 1/4*12-3
= 1/45
The given equation is

To solve for x, we have to subtract 8 to both sides

Now we need to get rid of -9 from the left side, and for that we do division


12. 15 (3x5x1)
13. 8 (4x2x1)
14. 18 (6x3x1)
Hope this helps! :D