The cost of highlighters is proportional to the number of highlighters purchased. If a 4-pack of highlighters costs $2.40, what is the cost per highlighter?

$1.10

Step-by-step explanation:

a 360 degree rotation

step-by-step explanation:

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