Find the least number which must be added to 6203 to obtain a perfect square. Also, find the square root of the number so obtained.

Which equation represents a line that is parallel to the line whose equation is 3x-2y=7( show all work)

The fence around a quadrilateral-shaped pasture is 3a^2+15a+9 long. three sides of the fence have the following lengths: 5a, 10a-2, a^2-7. what is the length of the fourth side of the fence?

After t seconds, a ball tossed in the air from the ground level reaches a height of h feet given by the equation h = 144t-16t^2. after how many seconds will the ball hit the ground before rebounding?