Answer:

Step-by-step explanation:
We are given with two equations
first equation is 
second equation is

we find the result of subtracting two equation
subtract the second equation from the first, so
first equation - second equation, multiply second equation by -1 and then add it with first equation


Now add both equations, we get

Answer:
4 months
Step-by-step explanation:
(2000 *6)/100 = 120
120x = 480
X = 480/120
X = 4 months
5 hours and 30 minutes or 5.5 hours
Answer:
2.3
v
−
5
Step-by-step explanation: your welcome