You deduct the number to the right by 1
if we take the $15.06 and take away the $5.00 (as its a discount) which leaves us with $10.06 and then add the $20.00 which gives us the final answer of $20.06
Hope this helps
Prime: 3,17,31
Composite: 10,24,38
Prime numbers can only be divided by one and itself, while composite numbers can be divided by a number other than one and itself.
5 divided by 1/2 equal to 10 becuase you need to find how many 1/2 rope can you get from 5
