Answer:
A
Step-by-step explanation:
The formula for this type of interest is , where A is the total amount, P is the initial investment, x is the interest rate, n is the amount of times that the investment is compounded a year, and t is the amount of years. Plugging in the numbers given, you get:
Now, she invests this into a new account, and you can set up the following equation:
, or option A.
Hope this helps!
Answer:
15
Step-by-step explanation:
123=x+x+12+(x+12)*3
123=5x+48
75=5x
15=x