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?

Isuck at math ; ^; m a student solved this problem and said the answer is 3 feet. chase had a roll of ribbon that contained 7 7/8  feet of ribbon. he cut off one piece that was 3 5/8  feet long and another piece that was 1 1/4  feet from the roll. how much ribbon was left on the roll? is the student's answer reasonable? yes, the answer is reasonable. no, the answer is not reasonable. it should be about 2 feet. no, the answer is not reasonable. it should be about 13 feet. no, the answer is not reasonable. it should be about 4 feet.