The new coords are (-4, 4), (-1,7) and (1,1)
Answer:
1.

2.

Step-by-step explanation:
Area of triangle=1/2×b×h
=



2. Area of triangle=14




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1/10, 3/10, 0.9
Hope this Helps
The tax is $18.90
(9/100) x 120 = $18.90
hope i helped :)