A rectangular pool is drained of water until it is only half full. If the length of the pool is 5.5m, the breadth is 12m and the height is 18m, find the volume of water drained in liters.

Find the center and the radius of the circle with the equation: x^2-2x+y^2+4y+1=0?

How many sides does a regular polygon have if each exterior angle measure is 45 degrees explain your answer, i really don't understand this.

Select the correct answer from each drop-down menu. the table shows the annual sales revenue for different types of automobiles from three automobile manufacturers. sales revenue (millions of dollars) suv sedan truck marginal total b & b motors 22 15 9 46 pluto cars 25 27 10 62 panther motors 26 34 12 72 marginal total 73 76 31 180 the company with the highest percentage of sales revenue from sedans is . of the annual sales revenue from suvs, the relative frequency of pluto cars is .