Answer: 5,600
Explanation: By multiplying 0.10 (4,000) to find the interest for one year, you get 400. Because she is using this loan for 4 years you multiply that one year interest by 4. 400 times 4 is 1600. Then, you add that 1600 (which is the total interest for 4 years) to the loan, to get an answer of 5,600.
If I understood correctly what you were asking it should be 56 ounces.Hope it helps :)
Answer:

Step-by-step explanation:
I assume you want the roots. Here we go:
Use the quadratic formula:
.
The discriminant is 900 - 1008, or -108 (so we will need i, the complex number that means
).
This means on the top you get 30 + 6isqrt3 and on the bottom you get 12.
So the fraction is 
Note: This is just one of the roots, I am sure you can find the second one!