13. Solve the following system of equations.

4x + 3y = 17
3x + 2 y = 13

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.

Tom can paint the fence in 12 hours, but if he works together with a friend they can finish the job in 8 hours. how long would it take for his friend to paint this fence alone?

If a flying disk is 139 meters in the air and travels at an average of 13 m/s how long is it in the air