Can y’all help me please

16 more than the product of 5 and p

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?

Cody was 165cm tall on the first day of school this year, which was 10% taller than he was on the first day of school last year.