Geometric Mean Maze!! Plz help click on the photo to see all

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?

A10 inch cookie cake is divided into 8 slices. what is the area of 3 slices

Can someone me find the original price? the discount is 5% and the sale price is $68.40