Point D (-2,-6)>>(x,-y)>> Point D’(-2,6)
Point D’ (-2,6)>> (-x,y)>> Point D’’(2,6)
<u>Story Problem</u>
Mr. Bill Gates bought a house in Italy for
and a house in Canada for
. What is the total cost of the two houses?
we know that
The total cost is the sum of the cost each house
so

therefore
the answer is
The total cost is 
Are there any answer choices?
Answer:
A.
Step-by-step explanation:
Answer:
6
Step-by-step explanation:
6*8=48
-2*21= -42
48+ -42 = 6