Sally buys 400 feet of fencing to put up a fence around her backyard. if she ends up using 7/8 of it, how much fencing will she have left over?

We should start by finding how much she did use:

7/8 * 400 = 350 feet used

To find how much she has left, subtract 350 from 400 to get 50 feet.

c - they will have the same distribution

step-by-step explanation:

this is the only one that could make sense. : )

for this case we have by definition, if two lines are perpendicular, then the product of their slopes is -1.

then, given the following line:

so,

we are looking for m_ {2}:

then, the line is given by:

we find "b" replacing the given point:

finally, the equation is:

option c