The scale factor is 5
In the first image, you can see that the pre image square it 1 unit long and the image is 5. How do you get 1 to 5, you multiply by 5. So the scale factor is 5.
GRETA :
75 + (45 x 1) = 120
$120
RICHARD :
You read it of the graph and it’s at $80
STEVE :
165 / 3 = 55
$55
Reasoning :
Greta earns the most money per hour as she earns $120 whereas everyone else earns under $100.
50-2n
that is the expression
