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:
0.987
Step-by-step explanation:
use stat on calculator
Set up an equation to solve for the tax rate, x:

We can conclude that the tax rate on the computer was 6.5 percent.
Answer:
2/6
Step-by-step explanation:
Count up and over going from one point to the next and you get slope intercept. This one is up 2 over 6
The answers are a=4 and b=-2