Physics

At 1:00 p.m. a car, traveling at a constant
velocity of 96 km/h toward the west, is 24 km
to the west of our school.
How far from the school will it be at 3:30
p.m.?
Answer in units of km.

I've been attempting this problem for at least 30 minutes and not getting the right answer. Help? Thanks!

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  1. car travels west.
    from 1:00 to 3:30 is 1.5 hours.
    speed is 96km/h.
    so, in that 1.5 hours, it travels 144 km.

    at 1:00 it was already 24km away.
    So, 1.5 hours later it is now 24+144 = 168km away.

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  2. 3.666

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