Answer:

Step-by-step explanation:
See attached file for complete work.
Answer:
2x+y=
1 beacuse ...... i had the same question
Step-by-step explanation:
Fraction = 3/7
decimal = approximately 0.429
percentage = approximately 42.86%
Answer:
t = 6 hours
Step-by-step explanation:
D = r x t
1920 = 320t
divide both sides by 320:
t = 6 hours