You can set y = to each side of the equation, then multiply by the denominator and put into standard form.
Left side:
.. y = 1/4x -3
.. 4y = x -12 . . . . multiply by 4
.. 4y -x = -12 . . . subtract x
Right side:
.. y = 1/2x +8
.. 2y = x +16 . . . multiply by 2
.. 2y -x = 16 . . . subtract x
These equations correspond to selection B.
$18 is the rounded dollar to $18.48
Answer:
Step-by-step explanation:
3x(x^2+4)
=3x^2+12x
14/16= .875 the answer is 87.5%