Betsy works from 6:00 AM to 12:00 PM, takes an unpaid lunch break from 12:00 PM to 1:00pm, then works from 1:00 PM to 3:30 PM. How many hours did Betsy work?

9 hours and 30 minutes I think

Step-by-step explanation:

9 hours and 30 mins

Step-by-step explanation:

98 points djdjsi zisksis sjsjsi sisksj sksjdj sksks sjsisj

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