Determine whether the given differential equation is exact. If it is exact, solve it. (If it is not exact, enter NOT.) x2y3 − 1 1 + 9x2 dx dy + x3y2 = 0

Gregory draws a scale drawing of his room. the scale that he uses is 1 cm : 4 ft. on his drawing, the room is 3 centimeters long. which equation can be used to find the actual length of gregory's room?

The price of an item has been reduced by 30%. the original price was $30. what is the price of the item now ?

Michelle is planting flowers in her garden. she wants the ratio of daises to carnations to be 3 to 2. michelle wants to plant a total of 35 flowers. how many daises should she plant?