Answer:
Explanation:
barrier = parameter, so we add all the sides:
8+3+3+5+5 = 24
24*1.75 = $42.
THEN, we need the area to solve for the mulch.
I would split it up into two parts so the rectangle and then the triangle.
First, 8*3 is 24
now we divide this by four because one bag covers four square feet
so, 6 bags (24/4=6) which is $36 (6*$6).
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Now, the triangle, which a = (hb*b)/2
12 divided by four again so 3
3 * 6 = $18.
Now we add ALL costs up to get
42+36+18 = $96 total for the entire project.