Answer: Option 'D' is correct.
Step-by-step explanation:
Since we have given that
Sale off = 15%
Rate of sales tax = 5%
Let y be the original price of the DVD.
Amount of sales tax would be

Amount after tax would be
y + 0.05 y = 1.05y
Now, there is off of 15%, so final cost of the DVD would be

Hence, Option 'D' is correct.
1/the rate of leakage per hour
This will give you the time it takes for 1 gallon to leak out in hours.
For example, if something is leaking at the rate of 12 gallons per hour, it will take 1/12 of an hour for 1 gallon to leak out. ( or 5 min)
Answer:
3x + 2
Step-by-step explanation: