The diagram shows a circle inscribed inside a square of side length 10cm. A quarter circle of radius 10cm is drawn with the vertex of the square as its center. Find the shaded area

Which ratio is equivalent to 10: 85

W-16=-12 solve each one step equation plz

According to a study conducted in 2015, 18% of shoppers said that they prefer to buy generic instead of name-brand products. suppose that in a recent sample of 1500 shoppers, 315 stated that they prefer to buy generic instead of name-brand products. at a 5% significance level, can you conclude that the proportion of all shoppers who currently prefer to buy generic instead of name-brand products is higher than .18? use both the p-value and the critical-value approaches.