18 points please help! check the file!

90 days you need to find the LCM of both of the days

Step-by-step explanation:

Find where 18 and 30 end up to and those are the many days they meet up again

step-by-step explanation:

options

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