It's 11040 plants because 92 percent of 12000 is 11040. (Idk if this is the best reasoning but :/)
30$ - 26.48$ = 3.52$
3.52$ / 0.08$ = 44 minutes
3/4 divided by 2 1/2 is 3/10
3/10
I believe that your answer is wrong and that it should be 19.2. If you set up a proportion of 5/12=8/x, and solve for x, that’s what you get