Answer:
it would be 3 days and 54
Step-by-step explanation:
s^3 power is 27, 4(3)+15 is 27, 27+27 equals 54
If you do 2,400 x .12 you get 288
You then need to do 288 and divide it by 12 and you get 24.
Your answer should be A. $24.00
It will be b because you will have to time $3.50P140= 490
Invested at 3% = x
invested at 4% = 2x
invested at 5% = x+500
0.03x + 0.04(2x) + 0.05(x+500) = 2025
0.03x + 0.08x +0.05x +25 = 2025
0.16x = 2000
x= 12,500
4% = 2x = 12,500 * 2 = $25,000
