What is the discrimination of the quadratic equation 6x^2-9x-8=0

You make and sell triangular flags. each flag has a base of  3.53.5  feet and a height of  2.52.5  feet. fabric for the flags costs  $0.40$0.40  per square foot. what is the cost to make one flag?

The slope of a line is -1/2 . what is the slope of a line that is parallel to it? a. 1/2 b.2 c. -1/2 d. -2

The radius of the earth is two times the radius of the moon. what fraction of the volume of the earth is the volume of the moon?