Jerome has 1/4 of the groups video games at his house. mario has 2/5 of the group's video games at his house. what fraction of 5e group's video games is either at jerome's house or marios house

What is the result of converting 60 ounces to pounds remember there are 16 ounces in a pound

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?

How do i simply this expression (quadratic formula basis) on a ti-84 or normal calculator?