Answer:
A'(6, 6)
B'(7, 2)
C'(5, 1)
Step-by-step explanation:
IK
(2.5 ×

) × (7 ×

)
First, simplify brackets. / Your problem should look like: 2.5 ×

× 7 ×
Second, simplify. / Your problem should look like: 17.5 ×

×
Third, simplify exponent. / Your problem should look like: 17.5 ×

Answer: B
The square root of -36 is 6i
the plus sign (+) means above seal level
so the sign should say 2100 feet above sea level