If snow is falling at a rate of 1/4 inch every 30 minutes, how much snow will fall in 4 1/2 hours.

The base of a triangle exceeds the height by 9 inches. if the area is 180 square inches, find the length of the base and the height of the triangle.

Me. i can't figure out this question. give an explanation too. .

Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. 4x^2 + 20x + 25 = 0