If i worked for 9: 15am to 12: 45pm how many hours did i worked

3:30 (Three hours and thirty minutes)

Every hour has 60 min, so:

From 9:15am to 10:00am he worked 45min;

From 10:00am to 12:00am he worked 2h;

From 12:00am to 12:45pm he worked 45min;

Now we sum everything:

45 + 45 = 90min = 1:30h

1:30 + 2h = 3:30

Hope it helped,

BioTeacher101

mark other person brainliest

the answer is y < -3 or   y > 3

-3y > 7 + 2

-3 y > 9

y < -3