The average of two numbers is 7. find the numbers if three times one of the numbers is one half the other number. (hint: write a system to determine the correct numbers)

Asoccer ball manufacturer wants to estimate the mean circumference of soccer balls within 0.1 in

Jack has a piece of red ribbon that is two times as long as his piece of blue ribbon. he says that he can use two different equation to find out how long his piece of red ribbon is compared to his piece of blue ribbon is. is he correct? explain his reasoning

Drag the tiles to the boxes to form correct pairs. not all tiles will be used. match each set of vertices with the type of quadrilateral they form