lily found that about 80% of 80 friends like country music. how many of her friends like country music?

64%

Step-by-step explanation:

.80 percent *80 =

(.80:100)*80 =

(.80*80):100 =

64:100 = 0.64

c is the answer

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