Primcipal 739.30 Total = 778.90
Found by trial and error. I tried using equations but when you have TWO unknowns, it's (I think) impossible.
Answer:
3
Step-by-step explanation:
Assuming you mean 
Using the rule of radicals
×
⇔
, then

= 
=
× 
= 3
Answer:
My own answer to your question is x=10