A) Work out
16.3-4.97 + 8.6
(2)
I

b) Work out
2164.89 +7
(2)

21

jk it's 20

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

lo98765432wqasdfghjkloi87654567890

step-by-step explanation: