Answer: scale factor = 1.5
Step-by-step explanation:

Given: Triangle ABC is a scaled copy of triangle DEF.
Side AB = 12 cm and is the longest side of ABC.
Side DE = 8 cm and is the longest side of DEF.

AB is corresponds DE (longest side of both triangles)
So, 
Hence, the scale factor = 1.5.
Answer:
b. 6.25%
Step-by-step explanation:
In order to obtain the unemployment rate in Micronesia, you have to divide the amount unemployees that still in the labor force between the amount of people in the labor force.
The labor force is defined as the number of people employed plus the unemployed people who are seeking work.
The number of people employed is the people who work part time plus the people who are fully employed (the remainder of the 80,000 people). Therefore:
14,000 + (80,000 -16,000 - 4,000 - 14,000)
14,000+46,000=60,000
The number of unemployed people who are seeking work is:
4,000
The labor force is:
60,000 + 4,000 = 64,000
The unemployment rate is:
4,000/64,000 = 0.0625
Multiplying by 100 to obtain the percentage:
0.0625(100)=6.25%
Answer:
B)
Step-by-step explanation:
(a-4)²-a-4
a²-8a+16-a-4
a²-9a+12
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