The inventory of single houses is 980 in the housing market last year. After some of them were sold, there are 637 single houses left. What was the percentage decrease in the number of single houses?

Table which ratio is equivalent to 3: 7? 6: 7 3: 21 24: 56 15: 30

Someone answer asap for ! a discount store’s prices are 25% lower than department store prices. the function c(x) = 0.75x can be used to determine the cost c, in dollars, of an item, where x is the department store price, in dollars. if the item has not sold in one month, the discount store takes an additional 20% off the discounted price and an additional $5 off the total purchase. the function d(y) = 0.80y - 5 can be used to find d, the cost, in dollars, of an item that has not been sold for a month, where y is the discount store price, in dollars. create a function d(c(x)) that represents the final price of an item when a costumer buys an item that has been in the discount store for a month. d(c(x)) =

In the diagram, ab is tangent to c, ab = 4 inches, and ad = 2 inches. find the radius of the circle.