Emma has a wooden sculpture in the shape cuboid .The sculpture is 2.2m high,1.1m wide and 0.55m thick Emma plans to paint all the faces of the sculpture with three coats of wood varnish. The varnish sold $3.99 ,the size of a tin is 100ml and 20m square per litre. How may tins of wood varnish does Emma need to buy?

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