Given points a(3,7) and b(8, -3) are the end points of ab, calculate the coordinates of m, the midpoint.

On an airplane there are two seats on the left side and three seats on the right side there are 90 seats o the right side of the plane

The circumference of a circle is 60 pi cm3what is the radius of the circle

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?