Jamal is 12 years older than twice Stephanie’s age. The sum of their ages is 45. A. If Stephanie’s age is represented by x, write an expression for Jamal’s age in terms of Stephanie’s age. B. Write an equation that you can use to find the ages of both Stephanie and Jamal. Solution: D. Stephanie’s age: Jamal’s age: PLEASE PLEASE HEL IMPORTANNN

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Does the point (1, sqrt 7) lie on circle shown.

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)) =