The water level at Champion Creek Lake is at 2127.96 feet , which is above leaks for measurement officials have decided to drain the leak at the rate of 3.4 feet per day until they goes to 2,083 feet that lower represents a full lake. How many days will it take?

Afootball is throw by a quarterback to a receiver

You dug a hole that was 8 feet deep. after taking a short break, you dug down 3 more feet in the same hole. when finished digging, a tractor accidentally filled the hole with 4 feet of dirt. how deep is your hole now?

Set $r$ is a set of rectangles such that (1) only the grid points shown here are used as vertices, (2) all sides are vertical or horizontal and (3) no two rectangles in the set are congruent. if $r$ contains the maximum possible number of rectangles given these conditions, what fraction of the rectangles in set $r$ are squares? express your answer as a common fraction.