7 in.
Which faces have an area of 28 in.?? Select all that
apply.
Left
9 in.
Front
4 in.
Bottom
9 in.
9 in.
Top
Right
Back
9 in.
4 in.

answer: 48

just remember to use pemdas:

parentheses

expressions

multiplication

division

addition

subtraction

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