Answer: To pay her bill with the minimum balance to avoid the fee, she needs the total amountof $300+$125.43=$425.43. But she only has $325.54. So, the extra minimum amount she needs to deposit is 425.43-325.54=$99.89.
Hence, the answer is $99.89.
Add the who numbers: 4 + 2 = 6
You are correct, it's C. 6
I used similarities in triangles
What are the instructions or equations to use