Answer:
Step-by-step explanation:
Cost of one dress =
Cost of one pair of shoes =
Cost of one dress and a pair of shoes is
They get half off the price because they buy both
The shipping and handling charge is .
So, the total amount Ruth has to pay is .
the equation of the line is
y = -3x + 6
slope is m = -3
as we know that for parallel lines, the slope is always equal.
so the slope of the new line is also m = -3
it is also passing through (-4,9)
so the equation of the line i s
m= -3
so the answer is y = -3x - 3