Wsg peeps and was new?

And is this tha perfect couple?
It me and my gurl

The only way to identify an intercept is as an ordered pair. true false

Acar started driving from city a to city b, distance between which is 620 miles, at a rate of 60 mph. two hours later a truck left city b and started moving towards city a at a rate of 40 mph. how many hours after the truck's departure will the two meet?

Can someone me with #s 8, 9, and 11. with just one of the three also works. prove using only trig identities.