Answer:
C, 12,800
Step-by-step explanation:
40 x 320 = 12,800
Your answer is 12 because 8*4=24 and 3*4=12 Your answer is 12
Answer : $ 9, 152
Luna invested $8000 for 36 months at an interest rate of 4.8%
Let P = principal
T = time
r = rate
Using the simple interest,

The total balance = Interest + principal
Balance = 1, 152 + 8000
Balance =$9, 152
The total money she will have at the end of the investment is $9, 152
You would approximate because the hypotenuse might not be a perfect square.