Answer:
The second one
Step-by-step explanation:
Your one is the correct
Answer:
R = 13%
Step-by-step explanation:
P = $4000
I = $780
T = 18 months = 18/12 years

Combine 5x and x and that makes 6x+3
It takes 3 minutes to fill 60L, so it takes 1 hour to fill 1200L.