Answer:
17
Step-by-step explanation:
You already owe 5 dollars and if you borrow 12 more, you have to pay that back later. You just add 5 and 12 and get 17.
No se?
Hi...
a^2+b^2=c^2
b^2=c^2-a^2
b^2=22500-3600=18900
So...b=137/4
