Sarah kicked a soccer ball into the air with an initial upward velocity of 48 feet

per second. The height in feet of the ball above the ground can be modeled by h = –16t^2 + 48t , where t is the time in seconds after Sarah kicked the ball.

a. How long was the ball in the air before it returned to the ground?
b. Find the height of the ball after 2 seconds.

Find the greatest common factor of the followig monomials 21u^5v,3u^4v^6, and 3u^2v^5

The interior angles formed by the side of a hexagon have measures of them up to 720° what is the measure of angle a

Tom is the deli manager at a grocery store. he needs to schedule employee to staff the deli department for no more that 260 person-hours per week. tom has one part-time employee who works 20 person-hours per week. each full-time employee works 40 person-hours per week. write and inequality to determine n, the number of full-time employees tom may schedule, so that his employees work on more than 260 person-hours per week. graph the solution set to this inequality.