There are two couches against a wall. one takes up 4/9 of the wall and the other takes up 1/5 of the wall. how much of the wall is covered by couches.

In the image, point a marks the center of the circle. which two lengths must form a ratio of 1 : 2? (options are in the images since thought they were harmful phrases)

The green family is a family of six people. they have used 4,885.78 gallons of water so far this month. they cannot exceed 9,750.05 gallons per month during drought season. write an inequality to show how much water just one member of the family can use for the remainder of the month, assuming each family member uses the same amount of water every month.

Find an equation of the line perpendicular to the graph of 28x-7y=9 that passes through the point at (4,1)