Michael wants to place grass on the sides of is lap pool gind the area of the shaded regions that he wants to cover with the grass

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?

When y’all answer can y’all explain too !

True or false? a circle could be circumscribed about the quadrilateral below.