Find the solution of this system of equations 10x-7y=-1 -2x-7y+-25

Which statement describes the term economics? a. it is the study of using limited resources to fulfill wants and needs. b. it is the study of how governments fulfill the wants and needs of nations. c. it is the study of how people spend their money to fulfill wants and needs.

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

Need so much on this one how many yards?