Eva gasta cada día 4 $ en el metro y 10 $ en la comida .¿qué expresiones reflejan el gasto durante los cinco días laborales de la semana?

White shapes and black shapes are used in a game. some of the shapes are circles. while the rest are squares. the ratio of the number of white shapes to the number of black shapes is 5: 11. the ratio of the number of white cicrles to the number of white squares is 3: 7. the ratio of the number of black circles to the number of black squres is 3: 8. work out what fraction of all the shapes are circles.