: D. Chemical energy is transformed to light and thermal energy
Answer:
x(0.75)
If you get a 25% discount then you can subtract 25% from 100%, leaving you with 75%. If you multiply the value of x by 0.75, it will give you the final cost.
For two lines to be parallel, they must have the same slope...
3y=-5x+15
y=-5x/3 +5, y=mx+b, where m=slope so:
A parallel line with have a slope of -5/3