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.
Answer:
(9,126)
Step-by-step explanation:
Make sure x and y are on the same side

Eliminate y by multiplying the first equation by 4 then adding both equations together

Plug the x value (9) into one of the equations

Solve

x=9, y=126
(9,126)
Answer:
100
Step-by-step explanation:
1/2 = 50/x
(cross multiply)
100 = x
Distribute and simplify.
2(x+8)+6x
2x+16+6x
8x+16
8(x+2)