Y=-8 when x=20, find “y” if x=-4

Pls , the question is in the picture!

Which statement most accurately describe why the division property of exponents does not apply to the expression (-8)^2/(-3)^4

Arefrigeration system at your company uses temperature sensors fixed to read celsius (°c) values, but the system operators in your control room understand only the fahrenheit scale. you have been asked to make a fahrenheit (°f) label for the high temperature alarm, which is set to ring whenever the system temperature rises above –10°c. what fahrenheit value should you write on the label