<span>A. an observational study, since they were not assigned to their groups.</span>
<span>the answer to this is (3,-2)</span>
Answer:
340.8 m
Step-by-step explanation:
Find the area of rectangles:
15 x 8 = 120
6x8=48
16x8=128
Find area of triangle:
1/2 5.6 x 16 = 44.8
Add together:
120 + 48 + 128 + 44.8 = 340.8 m
Hope this helps :)
20
50% is the same thing as one half, so half of 40 is 20.
