If a ferry boat covers 28 miles in 4 hours, how much distance will it cover in 12 hours?

Steve is scuba diving near his home in maui. at one point he is 100 feet below the surface. represent this number with a negative number. if he descends another 5 feet, what negative number will represents his.

The circumference of a circle is 5 pi cm. what is the area of the circle?

Gretchen is setting up for a banquet. she has 300 chairs and needs to distribute them evenly among t tables. how many chairs should she put at each table? write your answer as an expression.