Help!!! If a den has 0.5 by 0.6 dimentions , what will be the dimensions after the house is built; 1/2 in = 10 ft

Can any one help me figure this out???? Thanks!!

3 answers

What unit of measure is used?

I don't understand 0.5 by 0.6.
I figured it out but the one I don't understand is to find the dimensions on a house after its built if it is 18 feet by 16 feet and they are giving me the same info 1/2 in = 10 feet?? What formula do I use?
Find each quotient

18.9÷30