Use the following rule to determine the income tax for an individual where x is the​ person's income. Find the tax due on an income of ​$3750. h(x)= 0.04x, if 0≤x<4000 160+0.05(x−4000), if 4000≤x<10,000 460+0.06(x−10,000), if x≥10,000

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.