In the diagram, ab = 10 and ac = 2/10. what is the
perimeter of aabc?

How to determine whether two known pairs of points are on the same line.

Amerchant has coffee worth $60 a pound that she wishes to mix with 50 pounds of coffee worth $90 a pound to get a mixture that she will sell for $70 a pound. how many pounds of the & 60 coffee should be used?

On a architect's drawing of a house, 1 inche representa 1.5