Answer:
The balance will be $7,577.03.
Step-by-step explanation:
The compound interest formula is given by:

Where A is the amount of money, P is the principal(the initial sum of money), r is the interest rate(as a decimal value), n is the number of times that interest is compounded per unit t and t is the time the money is invested or borrowed for.
In this problem, we have that:

Semianually means twice a year, so 
We want to find A when
.
So



The balance will be $7,577.03.
Answer:
$34.50
Step-by-step explanation:
At 3.45 for 3/4 pounds that = to 4.60 for 1 pound.
4.60 *7.5 pounds= $34.50
I hope this help in some sort of way you can message me if you need more help
Answer: C
Explanation: it’s the longest one