2) Mary Joins 2 Lengths Of Wood Together. One Is 17.4cm Long, The Other One Is 2.2cm Long. How Long

2) Mary joins 2 lengths of wood together. One is 17.4cm long, the other one is 2.2cm long. How long is that altogether?

 

Answer:

19.6 cm

Step-by-step explanation:

hope it helps:))