When A equals 4, the minimum is _ and the maximum is _

The appalachian trail is a hiking trail that passes through the appalachian mountains. three members of a teen hiking group hiked a section of the trail. the hikers stopped at a rest area and equally shared 3 4 gallon of water. how much water did each person get?

What is the solution set of the quadratic inequality x^2-5< or equal to 0

Can someone tell me if this is perpendicular? !